These stickers are hat stickers. Made of stable material. for long-term use. Adhere to the skin very well, not itchy and will not fall off even after of exercise. The hat size reduction strap can be attached to the inside of the hat to make your hat smaller than usual. Features -Color:Assorted Color -Material:EVA Foam -Size:11.00X2.00X0.20cm/4.32X0.79X0.08in -Note:It can reduce the cap circumference between 1-1.5cm/0.39-0.59in. - Stable materials are carefully crafted, the caps liner pads are breathable and safe to use. - These hat liner are perfect to be used for baseball hat, tennis hat, golfs hat, sun hat, etc. - Self-adhesive, easy to use and disassemble, without spending too much time.Just peel it off, stick it into the hat lining. Very suitable for your hats. - The hat pad has an appearance, simple design, and is convenient for people to use at any time. - Cap stickers can help customers adjust the size of the cap, so that the cap fits the head more closely and avoids discomfort on the head. Package list: 15 Liners(Black) 15 Liners(White)