The product is a pair of adjustable roller skates with light up wheels, designed for boys and girls beginners in size M (1-4 years old). The roller skates by SZHZS are suitable for both boys and girls and come in a medium child size. Built for outdoor sports and inline skating, these roller skates provide a fun and safe option for young children to enjoy skating. The light up wheels add a fun and colorful element to the overall design, making them a popular choice for kids who love to skate.