FITS MOST 8-40 OZ BOTTLES - The water bottle straps work great for 8-40 oz bottles, such as Stanley cups, Simple Modern tumblers, Hydroflask wide mouth bottles and other bottles with lip HIGH QUALITY - Made from BPA-free silicone and hand-woven lanyards, this water bottle strap is safe and reusable CLASP HANDLE - The water bottle strap is equipped with high flexibility metal snaps on both sides, which adapt for multiple uses, hang on strollers, backpack, bikes, keep your hands free when you shopping, hiking or walk the baby EASY TO INSTALL - The water bottle cup strap is easy for you to install, you just stretches it and put it around water bottles. The silicone ring is small in size but has a lot of elasticity, it may take some effort to install, but once installed it will be tight and won't fall off WIDE APPLICATIONS - The Silicone Water Bottle Handle makes it easy to carry your water bottle. The Silicone Water Bottle Sling is very suitable for walking, traveling, vacation, sports, rock climbing, cycling, camping, fitness, hiking and running, and other outdoor sports FITS MOST 8-40 OZ BOTTLES - The water bottle straps work great for 8-40 oz bottles, such as Stanley cups, Simple Modern tumblers, Hydroflask wide mouth bottles and other bottles with lip