The World’s 1st Universal Cup Insulator! Goodbye watered down coffee or crappy neoprene sleeves. The To-Go Buddy fits every size hot & cold cup you need and keeps your ice for up to 24 hours. Want to use it as a normal tumbler? That’s fine, just toss on the 100% leak-proof lid. Material: Double Walled Stainless Steel w/ Copper Lining Cup Holder Compatible Hand Wash Recommended Cold 24+ Hours Hot 6+ Hours Dimensions: 7.4” x 3” Liquid Capacity: 32oz