The Finger Strengthener Can Not Only Increase Strength, But Also Can Be Used For Rehabilitation Training After Injury, Help Restore Hand Strength. Finger Strengthener Help You Relive Your Hand Pain, Arthritis, Carpal Tunnel, Finger Numbness. Our Products Could Effectively Improve Blood Circulation To Help You Wake Up The Hand 'S Vitality. Specifications: Product Name: Finger Trainer Material: Silicone Resistance Level: 6.6lb, 8.8lb, 11lb, 13lb, 17lb, 21lb Color: Black Grey Packing List: Finger Trainer 2 Hand Strap 1 Note: Due To Lighting Effects And Shooting Angles, There May Be Chromatic Aberration In The Product, Please Understand.?Widely Used ?Finger Strengthener Has Been Used By Musicians, Physiotherapists, Doctors, And Technicians In Various Fields To Exercise Their Hands For Health. ?Easy Exercise ?Whether You Are Warming Up Pre-Show Or Conditioning When You'Re Away From Your Instrument, Is The Ultimate Portable Workout. At The Office, At Home Or On The Train, You Can Keep Up Your Finger, Hand And Forearm Hand Grip Strengthener And Coordination. ?Ideal Choice?The Perfect Design Of The Product Maximizes The Range Of Activities During Exercise, Using The Velcro Adjuster, Without Having To Consider The Circumference Of The Wrist. Hold A Fitness Machine To Enhance The Strength Of The Fingers, Forearms, And Wrists. It Can Also Isolate And Train The Flexibility And Endurance Of Each Finger Separately. ?6 Resistant Levels?Our Grip Strength Trainer Has Two Variations: "Rehabilitation Kit" (6.6lb, 8.8lb, 11lb ) For A Smooth Recovery And "Athletic Kit" (13lb, 17lb, 21lb ) To Increase Fingers And Wrists Strength. ?Safe And Durable?Our Finger Stretcher Is Made Of High-Quality Silicone Material, Which Is Safe And Durable, Not Easy To Tear, And Can Be Used For A Long Time. Our Finger Exerciser Is Washable And Last Longer.