Product information: Color: smart style-white, smart style-black, smart style-purple, smart style-light blue, smart style-pink, ordinary-White, ordinary-black, ordinary-purple, ordinary-light blue, ordinary-pink Material of liner: Alloy Insulation Performance: 6-12 hours Material: inner 304 outer 201 Packing specification: Regular Shell material: 201 stainless steel Style: with rope handle, large capacity, CUP, Tumbler Functions: thickening, regular, household, portable, vacuum, heat preservation, customizable, drop resistance, temperature measurement Style: American Capacity: 510ML