Enhance the safety of your favorite baseball cap with this protective hat liner. The insert is designed to maintain the cap's shape while providing an additional layer of protection. Its lightweight construction ensures that it won't weigh you down, making it for long hours of wear in various settings. Features -Color:Black -Material:Plastic -Size:19.50X19.50X10.00cm/7.66X7.66X3.93in -Head protection: ensures your head is from impacts, giving you peace of mind during baseball games -Durable abs construction: made from tough abs material, this cap insert offers reliable and protection -Effortless installation: the insert design allows for quick and easy installation, providing a secure and comfortable fit -Lightweight and comfortable: the plastic shell is designed to be lightweight, ensuring comfort without compromising protection -Versatile usage: suitable for baseball and other sports that require head protection, such as basketball and soccer Package list: 8 x Baseball Bump Cap Insert