Mermaid Swimwear Bundle by Shimmertail - Shimmertail Collection - (Swim Tail, Swimsuit and Mermaid Gloves) SOFT TPR MATERIAL The mermaid swim fin designed with soft TPR material and let your children comfortably enjoy the swimming. UNIQUE DESIGN Its colorful and mermaid shape will increase the swimming interest of your children, Enhance their confidence of swimming. SIZESuitable for boy shoe sizes 1-6 and girl shoe size 2-7. The Mermaid tail not fits adult shoe size. ADJUSTABLE Quick-release foot strap and adjustable stretch belt make this swim fin easy to put on and take off, and stable at your childrens feet. BUILD LEG STRENGTHperfect for swimming training and practice, help your children improve body balance in the water and easy to kick for extended snorkeling time.