This listing is for a number decal that can be applied to a sports helmet or water bottle. (or any other flat surface) The decal will measure approximately 2” high x 1 - 1.5” wide for a single number and approx. 2” high x 2.5” wide for two numbers side by side. Decals are made using two colors of high quality outdoor vinyl. These numbers will come already layered, so all you have to do is remove the bottom layer of transfer tape and then apply the decal to your item. Please select the colors you'd like in the variations section. For reference, the bottom color in the (first) listing photo is ice blue and the top color is cobalt blue. Then, in the personalization section, you may identify the number you'd like me to make for you. The maximum amount of numbers is 2 for this listing (e.g. 1-99). If you need a number 100>, please message me for a price. If you have any questions, please PM me prior to purchase.