Worn and trusted by professional athletes to HIT HARDER, HIT FARTHER and SWING FASTER. The EXACT muscle groups used in game situations are enhanced through normal swinging motions in practice. Strategic weight placement allows the athlete to add resistance to the swinging motion, strengthening the appropriate muscle groups, resulting in increased STRENGTH, POWER and SWING SPEED. The sleeves are constructed with a stretchable neoprene compression fabric that provides each user a SECURE and CUSTOM fit. The flexible weights and compression strap conform to the athlete’s arms, preventing slipping.