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Your shopping cart is empty! | RoboMaster S1 Gel Beads. The gel bead, mainly containing sodium polyacrylate crosslinking copolymer, is safe and non-toxic. It is recommended to use the gel beads after soaking them in clean water for 3 to 4 hours at normal temperature. Manufacturer Website: https://store.dji.com/lv/product/robomaster-s1-gel-beads |