Material:  85% cotton, 12% Dacron, and 3% spandex.
Reusable, Adjustable
Fits Most Babies: The knee pads are unisex and fit most babies, Usual for 6-22 Month Baby, Kneepads circumference approx 13 cm/5.1 inches (unstretched); overall size 12 cm/4.7 inches 8.5 cm/3.35 inches (L x W); round pad (in the middle) diameter 7.5 cm/3 inches.
Product Care: The knee pads are easy to wash, to keep baby knee pads soft and quality, we recommend that you wash them by hand.