This Kids shoe's are made of of soft rubber. The back strap can be worn on the back of the heel or place forword for a clog. They are very safe for children. When they walk or jump the fir-fly will twinkle. This is a size 10 US size. 7 inches long, 3 inches wide. I also have at this time a 10 size, 9 size, 9.5 size. And 11.5 If you need more information let me know.