Labeda Hummer Cat-Eye Rollerblade Frame - JuniorThe Labeda Hummer Cat Eye Rollerblade Frame is an excellent choice for any roller hockey player not looking to use the hi lo system of wheels. These Labeda roller chassis feature a "flat" design, meaning each wheel used is all the same size. Generally speaking, the junior medium frame will all use 72mm wheels and the junior large frame will all use 76mm wheels. Whether your son or daughter is a serious roller player or you want to convert their ice