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 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 .Finger strap is strong to hold the bottle. It will 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 the glass body from damage and against hot. Not afraid of the , 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 day in one week. How cool Use it to your cup, and .Color: Multi-colorMaterial: NeopreneSize: 18 cm in length, 6.6 cm in diameterPackage Contents:1 X grey bottle sleeves1 X black bottle sleeves1 X blue bottle sleeves1 X green bottle sleeves1 X pink bottle sleeves1 X red bottle sleeves1 X navy blue bottle sleevesOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.