Glass Safety - Ensure family and friends stay safe at home and employees and colleagues stay safe in the work place with our 20 etched effect glass awareness stickers. Easy Install - Our 20 anti collision frosted dots are easy to apply and re-apply in case of misalignment and can be removed without mess and residual residue and glue. Window Awareness - Suitable for indoor and outdoor use, perfect for bringing awareness to large glass doors, patio doors, meeting rooms, shower screens or doors, glass balconies and partitions. Can also help to prevent bird strikes. QTY & Size - You will receive 20 of our 2 inch (50mm) circular window stickers. This is enough for installation on 10 feet of glass to comply with safety regulations. Highest Quality - Designed, printed by Window Flakes in the USA using the highest quality materials and innovative UV print process. 100% satisfaction guarantee.