What is this?Beer bottle sleeves are good for keeping your beer cold when you are having fun. Besides, bottle sleeves will let your hands don't feel much cold when you grab the bottle. Suitable for indoor or outdoor activities like camping, outdoor sports events, hiking, parties, and barbecues.What will I get?Color: RedMaterial: NeopreneSleeves Height: 185mm / 7.28"Sleeves  Flat Width: 95mm / 3.74"Fit for Bottles Size: 330ml to 350ml(12 oz)Package Content: 2 x Beer Bottle SleevesAre there any advantages of the product?Made of neoprene material, soft to touch. Convenient to clean, you can just use water to wash them. Make your bottle not easy to slip from your hand or slip from a smooth surface. Several colors to choose, you can identify your bottle easier from others easier.How to use it?Easy to use, just put your bottles into the bottle sleeves and then zip off.What should  I notice?Please check the bottle size before purchasing.