Item Type: Baby Knee Pad Socks SetMaterial: Cotton, SiliconeSize: (The above is a manual measurement, for reference only, if there is a 1-2cm error is normal)S: Suitable for foot length 9-11cm/3.5-4.3in, suitable for age 0-1 yearsM: Suitable for foot length 12-14cm/4.7-5.5in, suitable for age 1-3 years oldPackage List1 Pair of Baby Knee Pads1 Pair of Baby Socks1Anti Slip: The knee pads and socks are designed with non slip points, provide reliable protection for children's sports. 2Good Protection: Knee pads can prevent your baby's knees from injury when crawling, anti skid socks can prevent your baby from falling. 3Premium Materials: The set is made of high grade cotton and food grade silicone, safe and odorless, you can use them for your baby with confidence. 4Comfortable Feeling: Soft, skin friendly and breathable, without squeezing skin, the knee pads and socks are very comfortable for babies to wear. 5Ideal Choice: This set is very suitable for babies to learn to crawl and walk, which is a good choice for novice parents.