Description: Develop fingers flexibility, strength and coordination. Strengthen weaker fingers for superior hitting, throwing, and fielding. These are good for building you muscles around the hand and wrist area. Challenges each finger individually using spring-loaded finger piston technology. Whether you are strengthening your muscles or strengthening a wounded hand this is the perfect equipment for you. Specification: Material: PP, stainless steel Size: 7 x 9.4cm/2.8 x 3.7inch Color: random Package Includes: 1 Piece Hand Finger Exerciser 1 Piece Lanyard