Kids Cycling Inline Roller Skating Protective Gear Set, Knee Pads Elbow Pads Wrist Guards for Boys and Girls Pack of 6 (Black, Small)

The Small is great for my 4 year old when he's scootering and skateboarding. It's a little big, but the best fit I've found so far.

such poor quality and bad design, doesn't fit well on my 5 year old.