EFF-cientt&reg; 3 Pcs Silicone Water Bottle Holder Ring with Hook & Key Ring Convenient Carrying Buckle for Travel, Hiking, Climbing & Walking Can Attach to Purse, Belt, Bag or Backpack. You will receive 3 Pcs water bottle clip holders,One black,One red and One Blue. Diamiter of bottle holder inner ring: approx. 0.98 inches(2.5 cm). Excellent quality. Durable nylon strap with attached key chain.