Comfortable Material: It is made of PE foam board. The fabric is soft and the child feels comfortable to wear. The additional sliding buckle and the double safety buckle ensure the safety of the child. If you let go of the child while playing in the water, always worry about the unbuckling of the harness. Easy to use: easy to carry, easy to pack, easy to disassemble, no need to inflate, you can use children's swimming equipment immediately. Just pull your arm up and fasten your seat belt. The soft arm strap structure is comfortable to wear. Applicable Crowd: Suitable for children aged 2-6 years old weighing 30-52 Lbs. (14-25kg) Application: Very suitable for toddler swimming training, swimming pools and water parks for children on the beach. It is an excellent tool for learning to swim.