Blackout Roller Shades No Drill No Tools Cordless Blinds - 37.5in x

In this review the Persilux cordless blackout roller shade is judged on ease of fit, light blocking and simple installation. It is best for renters, parents and anyone who wants a fast, non-permanent solution for creating a dark, private bedroom or media room. The single biggest reason to buy is the truly 100% blackout fabric combined with a no-drill, no-tools install that can be completed in under a minute without damaging the window frame.

Key Features

• Exact inside-mount sizing: The blind is designed for an inside mount with a blind size of 37.5in x 72in and fabric size of 36.7in x 72in to fit window widths of 37in to 37.5in.
• No-tools setup: The top tension device installs without brackets, screws or drills and can be removed and repositioned without surface damage.
• Cordless free-stop safety: The spring glide system lets the shade stop at any position and avoids cords that are hazardous to children and pets.
• Thermal and UV protection: A built-in thermal coating helps insulate the window and reduce light and heat transfer while providing privacy.
• Sleek, durable finish: The bottom aluminum rail with concealed screws offers a clean look and a clear handle keeps the fabric clean when adjusting.

Who It's For

This blind is ideal for renters and homeowners who need a fast, non-permanent blackout solution for bedrooms, nurseries or media rooms. The cordless design makes it a good pick for families with small children or pets who need a safer shade without dangling cords.

It is not suitable for outside mount installations or very shallow frames; a minimum 2in window frame depth is required for inside mounting, and users with windows wider than 37.5in should look for a wider model or a custom solution.

Pros & Cons

Pros

• Installs in under 20 seconds without tools, making it very renter-friendly.
• Provides full blackout and strong privacy for darkened rooms and improved sleep.
• Cordless free-stop mechanism is quiet and safer for homes with children or pets.
• Thermal coating adds insulation and UV protection to reduce glare and heat.

Cons

• Only for inside mount and requires at least 2in frame depth, limiting some window types.
• Fabric width is slightly narrower than overall blind width, so exact fit matters and a few customers found size tightness.

Specifications

Brand	Persilux
Blind size	37.5in x 72in
Fabric size	36.7in x 72in
Mount type	Inside mount only (min 2in depth)
Fit range	Window width 37in to 37.5in (no-drill top device extends 0.5in)
Color	Black
Safety	Cordless free-stop spring system

Our Verdict

The Persilux 100% blackout cordless roller shade is a practical, budget-friendly choice for anyone who needs a fast, damage-free installation and reliable darkening. It is especially good for renters and parents thanks to the no-drill install and cordless safety, and the thermal coating adds genuine value by improving insulation and privacy.

Frequently Asked Questions

Can this blind be used for outside mount?
No. This model is designed only for an inside mount and requires a minimum 2in frame depth to fit correctly.

How much light does it block?
The blind uses 100% blackout fabric and customers report complete darkness when properly installed.

Is installation permanently damaging?
No. The tension no-drill device and removable mechanism are intended to avoid damage and allow repositioning.