My favorite juggling balls. The large ones measure 5.5 cm in diameter. The smaller ones measure 3.3 cm in diameter. These are extremely beautiful. They are $1 each. ($0.6 for the smaller ones). They are bouncy, made of some type of rubber. The different colors give out important info on the orbit of a juggling pattern. (more jugglers should start to use colored balls to be aware of orbits) The smaller ones are just there for fun and variety. They are good when you want to practice bounce juggling and don't want to disturb your neighbors, also good when you get tired of the same sized balls.