The High Visibility Reflective Safety Patches enhance visibility and safety in low-light conditions. Suitable for outdoor activities including hiking, biking, running, walking, and more as sleeves, hats, backpacks, bags, clothing, jackets, uniform gear, vests, harnesses, helmets, etc. Advantage: Made of reflective materials and cotton fabric, I can be seen far away in a dark situation. The hook and loop fastener design reflective strip is durable and does not easily fall apart. Instruction: Place the patch in the desired location where there is a loop surface directly. Or sew the provided loop piece, then attach. NOTE: Ensure that the patch is securely attached before use.