VoberryNew Arrival Kids Baby Crawling Knee Pad Toddler Elbow Pads Department Name: Baby Applicable Sports: Learning to walk Wear as elbow pads when toddles learn to ride bike, scooter, roller skate, skateboard etc. Stretchy cotton can easily slip on and provide comfortable fit; Size: For 9 months (around 18 lbs.) 2 years old (as elbow pads)