Boogie Toes for Tiny Tennis Fans are a perfect gift to welcome a new little member to your team.  Rubber grip-bottoms provide traction for new walkers and adorable stuffed tennis balls double as rattles. 100% Combed Cotton Rattle Accessory Socks. Hand Linked. Satisfaction Guaranteed, 85% Cotton, 10% Nylon, 5% Spandex.  Fits newborn to 12 months.