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 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 the strap strongly to the holder. The glass bottle sleeve can 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 , 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 different colors day in one week. How cool! it to your cup, and enjoy your life. Color: Multi-color Material: Neoprene Size: 18 cm in length, 6.6 cm in diameter Package Contents: 1 X bottle sleeves 1 X black bottle sleeves 1 X blue bottle sleeves 1 X green bottle sleeves 1 X bottle sleeves 1 X red bottle sleeves 1 X navy blue bottle sleeves Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.