{"product_id":"kwadron-optima-permanent-makeup-cartridge-1-round-liner-0-40mm-box","title":"Kwadron Optima Permanent Makeup Cartridge 1 Round Liner 0.40mm - Box","description":"\u003cp\u003eIn this review of the Kwadron Optima Professional Permanent Makeup Cartridge, the bottom line is simple: this box of 20 cartridges is aimed at experienced permanent makeup artists and technicians who need consistent, precise single-needle performance for fine lining and micro detail work. The reviewer found the 0.40mm 1 Round Liner configuration delivered reliable ink flow and a steady feel thanks to the cartridge's stabilizing and membrane systems, making it a practical choice for detail-focused procedures where cleanliness and control matter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical grade plastic:\u003c\/strong\u003e Durable cartridge bodies provide a consistent fit and reduce wobble for steadier line work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurgical steel needle:\u003c\/strong\u003e The 0.40mm single round liner needle offers precise puncture size ideal for micro details and crisp strokes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal ink flow:\u003c\/strong\u003e Needle configuration and channeling are designed to maintain steady ink delivery for smoother application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackflow protection:\u003c\/strong\u003e The membrane system helps prevent tattoo ink from entering the machine, preserving hygiene and reducing contamination risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEO gas sterilized:\u003c\/strong\u003e Ethylene oxide sterilization ensures the cartridges arrive sterile and ready for clinical use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox of 20:\u003c\/strong\u003e Sold in a pack of 20 cartridges for routine studio needs and predictable inventory management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Kwadron Optima 1 Round Liner 0.40mm is best for professional permanent makeup artists and technicians who perform detailed eyebrow, eyeliner, and lip work and who value a cartridge that supports precise control. Its small needle diameter and stabilizing design suit microblading-adjacent lining techniques and any client work requiring crisp, hairlike strokes.\u003c\/p\u003e\n\u003cp\u003eLess experienced users or hobbyists who are still learning needle depth and speed may prefer larger-grouping cartridges or guided training kits instead, as the single 0.40mm needle demands careful technique to avoid overworking delicate skin.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality construction with medical grade plastic and surgical steel gives a consistent, professional feel.\u003c\/li\u003e\n\u003cli\u003ePrecision 0.40mm round liner is excellent for super small details and crisp lines, as noted by users.\u003c\/li\u003e\n\u003cli\u003eMembrane and stabilizer systems support steady ink flow and reduce backflow risk, improving hygienic safety.\u003c\/li\u003e\n\u003cli\u003eSterilized by EO gas and sold in a box of 20 for studio convenience and inventory predictability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-needle 0.40mm size can be unforgiving for beginners and requires practiced technique to use effectively.\u003c\/li\u003e\n\u003cli\u003eSold only in boxes of 20 may be more cartridge than a low-volume artist needs at once.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKwadron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eOptima Professional Permanent Makeup Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e1 Round Liner, 0.40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNeedle Material\u003c\/td\u003e\n\u003ctd\u003eSurgical steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCartridge Material\u003c\/td\u003e\n\u003ctd\u003eMedical grade plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterilization\u003c\/td\u003e\n\u003ctd\u003eEthylene oxide (EO) gas sterilized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003eBox of 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Kwadron Optima 1 Round Liner 0.40mm is a solid choice for professional PMU artists who need reliable, precision single-needle cartridges with built-in backflow protection and consistent ink flow. It represents good value for studios that perform detailed lining and want sterile, ready-to-use cartridges in bulk, though beginners should seek training before using this fine gauge.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these cartridges sterile out of the box?\u003c\/strong\u003e\u003cbr\u003eYes. They are ethylene oxide (EO) gas sterilized and packaged ready for clinical use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat needle diameter is this cartridge?\u003c\/strong\u003e\u003cbr\u003eThis configuration is a 0.40mm single round liner needle, intended for precise detail work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many cartridges come in a pack?\u003c\/strong\u003e\u003cbr\u003eThe product is sold as a box of 20 cartridges, suitable for studio inventory and repeated procedures.\u003c\/p\u003e","brand":"Kwadron","offers":[{"title":"Default Title","offer_id":48748764758235,"sku":"B094PPXCK8","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/418YNHQ3iTL._AC_SL1000_64c955ce-2ad8-45da-9261-0ffa15d34c74.jpg?v=1778887913","url":"https:\/\/gearmusthave.com\/products\/kwadron-optima-permanent-makeup-cartridge-1-round-liner-0-40mm-box","provider":"GearMustHave","version":"1.0","type":"link"}