Normally you can buy the silicone wristband at below common dimensions. General size (adult): 8 "(L) x 1/2" (W) x 1/16"(H) or (202 MM x 12 MM x 2 MM) Women"s Dimensions (Adults): 190 MM x 12MM x 2MM General size (children): 7"(L) x 1/2"(W) x 1/16"(H) or (180MM x 12MM x 2MM) 61/2 "(L) x 1/2" (W) x 1/16"(H) or (165MM x 12MM x 2MM) But we also can offer below extra large silicone wristbands. 8.25 "(L) x 1/2" (W) x 1/16"(H) or (210 MM x 12 MM x 2 MM) 8.65 "(L) x 1/2" (W) x 1/16"(H) or (220 MM x 12 MM x 2 MM) 9 "(L) x 1/2" (W) x 1/16"(H) or (230 MM x 12 MM x 2 MM) 9.85 "(L) x 1/2" (W) x 1/16"(H) or (250 MM x 12 MM x 2 MM) For the width,you can choose more than 1/2" rubber bracelets(12mm). Such as 3/5"(15mm),3/4"(19mm) and 1"(25mm). Surely,if you have other extra large size need to do. We also can make the mould to do for you! So,any size will be ok! silicone-wristband-usb-flash-drivecheap-silicone-wristbands-canada the feature of the stretch silicone plastic. Silicone plastic is the main component. There are many kinds of silicone plastic for different fields of industrial product. Silica gel contains organic silica gel and inorganic silica gel. Silicone plastic is one of organic silica gel. Temperature resistance, weatherability, Electrical insulation performance, Physiological inertia, Low surface tension and low surface energy are the outstanding characteristics of organic silica gel. The one we use to make wristband is named Polysiloxanes di-Me Me vinyl vinyl group-termirubber braceletsnated chemically. We add curing agent to the soft original silicone plastic and mix them evenly, then put it to molding machine with high temperature of about 200℃, a few seconds later the silicone plastic gets solidified. Here comes the silicone wristband with custom logo by mould. Characteristic of the silicone plastic stay same on the process. All of our products are made from 100% high quality silicone plastic, eco-friendly, comfortable to wear and durable. Order less than 100pcs, get 50pcs free and 5pcs keychains free. Order 100pcs or more, get 100pcs free and 10pcs keychains free. All the free wristbands and keychains are same design of the one you order.