Muscle balance is a key to strong and healthy hands so industry leader IronMind delivers the two most essential training tools in one convenient package: a Captains of Crush Trainer gripper and Expand-Your-Hand Bands. Captains of Crush grippers are the world's top tool for building grip strength and the Trainer is the perfect starting point for people who are active. Expand-Your-Hand Bands are the key for achieving muscle balance, so get ready to kiss your tennis elbow pains goodbye. Expand-Your-Hand Bands are latex free and come in five different strengths (color coded); you get two complete sets (10 bands total), for progressive training with almost unlimited options.