4 PACK, new in box, Reduce 4-in-one with bottle opener bottom

4-in-1 Design can be used with 12 oz Slim Cans, 12oz Standard Cans, & 12oz Glass Bottles plus can be used as cup for mixed drinks. Soft-Sit silicone base with built-in bottle opener. Dual-wall vacuum insulated construction keeps drinks cold for up to 4 Hours. Easy to Clean, dishwasher safe, highly durable, easy grip finish, cupholder friendly!!