20pcs Hat Size Reducer EVA Foam Cap Size Reducer, peel & stick tape, sweatband, works with all caps and hats, 10 Black and 10 White, Insert on the inside of hat directly to hat or under the inside band. Size: 4.3"x .7" (11cm x 2cm, material: Polyester / Nylon. Add to your order. Free USA shipping with purchase of $35 or more. Delivery: 14-21 days.