1,keep warm for long time 2, very cute, 3,suitable for the old and young 4,waterproof Weight: ... Color: Any color available Cubage: 42*40*31cm (full of water) Packing: 20pcs/ctnV=220v, P=500wMOQ: 5000pcsKeep warm about 2 ... hoursMaterial: Waterproof 1,High quality, 2,competitive price, safety 3,different size and design we can supply.4,Customized logo is available ...