1.metial-clear pvc 2.this kind of children shoes have a special device-electronic light. 3.Electronic shoe lights series have the magic power to attract the attention of kids, because they can flicker when the kids are walking, this style is the most welcomed by children. 4.there are many colours for your choices,such as yellow,puple,pink, ect.5.this kind of shoes can be weared sandaloutside, also slipper indoor