New Solid Color Business Style Stainless Steel Tumbler Vacuum Flask Printed Logo Office Gift Cups.

Product category: vacuum flask Liner material: 304 stainless steel Thermal insulation performance: 6-12 hours Material: inner 304 and outer 201 Red: 304 stainless steel Shell material: 201 stainless steel Function: thickening, household, portable, thermal insulation, customizable, anti-fall. Capacity: 401-500mlProduct category: vacuum flask Liner material: 304 stainless steel Thermal insulation performance: 6-12 hours Material: inner 304 and outer 201 Red: 304 stainless steel Shell material: 201 stainless steel Function: thickening, household, portable, thermal insulation, customizable, anti-fall. Capacity: 401-500ml