Package & Size: You will receive 1 roll hat size tape. The size is 10m/394Inch/32.8Feet long, 2cm/0.79Inch wide, 3mm thick. This should be more than enough for at least 13-20 hats or more. Comfortable Material: Our hat size reducer tape rolls are made of comfortable EVA Sponge Foam, soft and durable, light in weight, with shock absorption buffer and heat insulation effect, will not cause discomforts to your skin. Self-adhesive design: The back of the hat size reducing tape is with a strong self adhesive backing, it can be attached directly to the inside of the cap firmly, will not fall off easily, also can attach to other surface, such as leather, felt, straw and so on. Easy to use: Cut the strip into small pieces and place underneath sweatband inside your hat, you may need to place on either side or front and back ends of the hat depending on the shape of your hat and desired fit. Once it feels right you may remove the paper back of the tape and permanently install the hat tape. Kindly Reminder: We recommend choosing a good fitting hat to begin with and using our hat reducer form making smaller adjustments (maximum 1cm (3/8")) for achieving a perfect fit.