IGLOO Ice BlockPlenty of cold without the mess. For busy days on the move, toss this reusable, non-toxic freezer block in your lunch box and keep everything cold until you it.Product DetailsNon-toxic Ultratherm gel delivers extended cooling performanceEach reusable block contains freezable gelCare InstructionsHand wash with soap and waterDimensionsWeight: 0.5 lbs / 0.23 kgs (Small)Exterior Dimensions: ( L x W x H ): 4.25" x 0.75" x 5.25" / 10.8 cm x 1.91 cm x 13.34 cm (Small)Weight: 1 lbs / 0.46 kgs(Medium)Exterior Dimensions: ( L x W x H ): 4.25" x 0.94" x 7.94" / 10.8 cm x 2.39 cm x 20.17 cm (Medium)Weight: 2.05 lbs / 0.93 kgs(Large)Exterior Dimensions: ( L x W x H ): 5.67" x 1.38" x 8.75" / 14.40 cm x 3.51 cm x 22.23 cm(Large)