Hot Water Bag Children's Student Mini Hand Warmer Description: Fresh and lovely cartoon patterns, small and exquisite, easy to carry PVC material, flexible and comfortable, good hand feel, explosion-proof and compression-resistant Spiral cover, sealing ring, leak-proof design Physical heat conduction, easy to warm hands, feet, and waist Specifications: Product Type: Cartoon warm water bag Material: PVC Colour: Random Size: 21*14cm Weight: 42G Function: compression and explosion-proof, PVC material, frosted anti-skid design on the back, convenient for hand warming, waist protection, and foot-warming; New leak-proof, spiral cover, groove leak-proof design, high-temperature resistance, corrosion resistance, no deformation; Warm and cold-proof, physical conduction, uniform heat dissipation, lasting heat preservation, warm all night Package Included: 1 * Hot Water Bag