Effective isolated resistance workoutChallenge each finger individually to ensure balanced conditioningGreat for athletes who need to develop and maintain strength, control, endurance, coordination and dexterityIndividual spring-loaded buttons for each fingerErgonomic palm bar adds to comfortFits left or right handFitness guide includedSold separatelyEverlast products are available for purchase only in the 50 States, District Of Columbia, Puerto Rico and US Guam