Age range:Adult Size:S Material type:Rubber, Cotton Sport:Volleyball, Running Batteries included?:No Department:Children's Kids Sports Elastic Knee Brace Protector Support Pads for Children Teenage Boys Girls Age 8-15 Dancing Vollyball Knee Joint Guard Protection Features Sports knee prrotection, Material: Cotton, sponge,latex yarn Proper thickness and front padded sponge to extrally protect knees. Back hole design for better movement. Elastic for comfy wearing. Size: 2 sizes S (L20*W11 CM) and M (L21*W12 CM), it is elastic, suitable for kids age over 8 years old, for teenage girls boys even slim adults, women men, please note the detail size when ordering Usage: Protect knees in dancing, running, playing volleyball, moving on knees activities etc.Package includes 1 pair of knee protection. About this item Sports knee prrotection, Material: Cotton, sponge,latex yarn Proper thickness and front padded sponge to extrally protect knees. Back hole design for better movement. Elastic for comfy wearing Size: 2 sizes S (L20*W11 CM) and M (L21*W12 CM), it is elastic, suitable for kids age over 8 years old, for teenage girls boys even slim adults, women men, please note the detail size when ordering Usage: Protect knees in dancing, running, playing volleyball, moving on knees activities etc.Package includes 1 pair of knee protection. Sports knee prrotection, Material: Cotton, sponge,latex yarn Proper thickness and front padded sponge to extrally protect knees. Back hole design for better movement. Elastic for comfy wearing Size: 2 sizes S (L20*W11 CM) and M (L21*W12 CM), it is elastic, suitable for kids age over 8 years old, for teenage girls boys even slim adults, women men, please note the detail size when ordering Usage: Protect knees in dancing, running, playing volleyball, moving on knees activities etc.Package includes 1 pair of knee protection.