I like these, my son is almost 3, height 49 and he is a solid boy of 42 pounds, so the knee protectors are just a little bit big, but they still can be adjusted and he will grow in them, the elbows are right size, also adjustable and can be used for long term. If your kid is too small, use elbow protection for the knees, they also fit perfectly...quality is good (not professional perfection) and they do the work, my son has fallen several time and NO SCRATCHS. These ones happily match with my son's hat also. I recommend these pads, te price s great and it is what a parent would like to protect the kid.