Balance is learning to swim arm circle essential goods， the first arm circle lets you get rid of the shackles of life preserver in the water free

Practice swimming， but it can also correct posture you can swim in the water arm!

Features: There are two air intakes in the balloon， the use of food-grade materials， non-toxic， wear-resistant， smooth seams， not hurt the skin， sealing well， bring more security while you enjoy the happiness.