Safe blaster】 Gel Ball blaster is a safety transmitter . which will explode immediately when it encounters an obstacle, forming a pile of small fragments. Once dry, they will disappear completely. 【Simple operation】The Gel Ball blaster is already assembled, just soak the gel in water for at least 3 hours to reach a diameter of 7-8mm. Then install the gel ball container and battery (no need to connect USB) After turning on the electronic switch of the gel ball launcher, just pull the trigger to shoot the water ball. This Gel Ball blaster is a favorite for all outdoor shooting games for kids and adults. It's a great form of entertainment. This game develops children's aiming skills, observation and stamina.Kids can have fun and grow in team shooting, family fun, summer or winter outdoor activities.