Square Tough Patch is a compact, ultra-bright glow-in-the-dark marker that helps you quickly identify and locate essential gear in low-light or dark conditions. Its rigid, non-flexible epoxy resin construction makes it highly durable and suitable for demanding use.

The patch provides long-lasting 24-hour afterglow without batteries, bulbs, or electricity. It absorbs light from any light source and delivers strong, reliable visibility when it matters most. The brighter the light source, the faster and stronger the glow.

Attach Square Tough Patch to keys, backpacks, door handles, emergency bags, first aid kits, tools, or other important items to make them easy to find in the dark.