This is our Grifiti Band Joes Standard 4 inch silicone band 5 pack. Assorted colors: Black, white, red, blue, green, orange, purple, pink, yellow, and light blue are the options. These are our standard, durable silicone bands. They're heat, cold, uv resistant and are made with cooking grade silicone so they are food safe. Great for wallets, grips, wraps, bins, bundles, board games, MacBooks, notepads, notebooks, and much, much more.... We measure our band sizes when squished flat, so a 4 inch band is 4 inches flat and about 2.5 inches in diameter. All our bands stretch between 2-3x so a 2 inch band will stretch to 6 inches or so. It's a bit variable depending on the batch as making bands is a lot like baking. What's included here: 5 4 x 0.625 x 0.125 inch bands: diameter is 2.5 inches, stretch is 2-3x or up to 12 inches flat Send us a note with the colors you want. If you want a ton of packs with different colors you'll get the best price by adding all them as "assorted" packs to the cart, then send us a note with the mix you want. If you don't hear from you, then we'll send a mix based on the colors we have in stock.