A Spaldeen is a type of rubber ball, typically pink, that is popular among children for outdoor games. It is about the size of a tennis ball and is known for its durability and bounce. The name "Spaldeen" is derived from the brand name of the ball, which was originally produced by the Spalding company. These balls are often used in games like stickball and handball, where players throw or hit the ball against a wall. The Spaldeen's lightweight design makes it easy to carry and play with, contributing to its status as a classic playground toy.