It is suitable for all fitness levels, from beginner to advanced. Tight finger holes to prevent the bands from slipping off your fingers during your workout. Stretch silicone provides maximum comfort and fits well for all hand sizes, perfect for men, women, seniors, teenagers and kids. Prevent muscle imbalances from the overuse of "crushing" type hand and finger grip exercises. Improve finger strength for athletes and musicians, good choice for those who love climbing, golfing, playing tennis, baseball, guitar, piano.