Safe material: the swimming weights for children are made of durable, non-toxic plastic. Bright colour, durable, not easy to break, not easy to damage or fade. Interesting design: the edges of the diving rings and the diving torpedo toy are smooth and easy to grip. Diving rings can stand upright on the bottom of the pool. Torpedo can also go through the rings. Swimming pool fun do not worry about hurting your children. Collect these diving pool toys and score points so you can be the winner of the competition in summer with your family. Good diving gift for children these swimming toys have bright colours and a vibrant shape, spend time with your children to play, a great gift for your children at their birthday party, summer holidays, swimming lessons and even in the bathroom. Package and size diving rings (4 pieces), diving torpedos (4 pieces). Ring: diameter 5.5 inches, 51 g; Torpedo: length 5.5 inches, 38 g; Material: food grade plastic.