BOTTLE SLEEVE SIZE: Diameter 6.8cm, height 18cm. If the diameter of your bottle between 2 - 2.6 inch (5-6.6cm), then it would fit. In other words, it fit for 12 to 18 oz glass or plastic bottle. STRETCHY MATERIAL: The sport bottle sleeve is made of durable neoprene. It feel soft, stretchy and lightweigh, keep water cool or warm, and keep bottles from sweating. The sleeves rim hugs the bottle snugly, easy to take on and off. Finger strap is strong to hold the bottle. It will protect your bottle from scratch damage and against hot. GOOD INSULATION: Good quality stitching connect the strap strongly to the holder. The glass bottle sleeve can protect the glass body from damage and against hot. Not afraid of the crease, because it can repair itself. Portable neoprene bottle sleeve is suitable and very convenient for indoor and outdoors use, such as camping, swimming, driving, fishing and other activities. It is also easy to clean, and weather resistant. 7pcs different color of bottle sleeves. it is really affordable. It will help keep your beverage cold or hot. You can use different colors every day in one week. How cool! Use it to protect your cup, and enjoy your life. Color: Multi-color Material: Neoprene Size: 18 cm in length, 6.6 cm in diameter Package Contents: 2 X grey bottle sleeves 2 X black bottle sleeves 2 X blue bottle sleeves 2 X green bottle sleeves 2 X pink bottle sleeves 2 X rose red bottle sleeves 2 X navy blue bottle sleeves