BOTTLE SLEEVE size: Diameter 6.8 cm, height 18 cm. If the diameter of your bottle is between 5-6.6 cm, it will fit. In other words, it fits 350-530ml glass or plastic bottles. STRETCHY MATERIAL: The sports bottle sleeve is made of neoprene. It feels soft, stretchy and lightweight, keeps water cold or warm and prevents bottles from sweating. The edge of the sleeve hugs the bottle tightly and is easy to put on and take off. The finger strap is strong and holds the bottle. It protects your bottle from scratches and heat. GOOD INSULATION: The seams firmly attach the strap to the holder. The glass bottle sleeve can protect the glass from damage and heat. Not afraid of, as it can repair itself. Portable neoprene bottle sleeve is suitable and very practical for indoor and outdoor use, such as camping, swimming, driving, fishing and other activities. It is also easy to clean and weather resistant. 7 bottle sleeves in different colors. It's really good value. It helps keep your drink cold or warm. You can use different colors every day for a week. How cool! Use it to protect your cup and. color: Multicolor Material: Neoprene size: 18 cm long, 6.6 cm in diameter Package contents: 1 X gray bottle sleeve 1 X black bottle sleeve 1 X blue bottle sleeve 1 X green bottle sleeve 1 X pink bottle sleeve 1 X rose-colored sleeve 1 X navy blue bottle sleeve Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.