Grays UB3 Composite Stick The Grays UB3 field hockey stick is an ideal choice for beginners learning the game of field hockey. Its Ultrabow shape is specifically designed to help young players develop core skills. The thin middle section aids in hand movements, while the fiberglass composition enhances control and first touch. If you like the feel of this stick but want more Carbon, you might like the Grays UB4 field hockey stick.