Finger Exerciser King- Hand & Finger Strengthener For Grip, Practice Guitar, Piano,or Practice playing Harp, Rock Climbing Training And Basketball Finger Training

Number of rings: 5 Number of Springs: 5 Adjustable tension: 0.68LB to 6.89LB Dimensions: 15.47x 7.68 x 0.7087 inches (39.30 x 19.5 x 1.8cm) Net weight: 0.88lb (400g)

• Designed with musicians and athletes in mind, this finger exerciser king is launched into markets at early 2017 after continuous testing and improvements.
• This patented device effectively challenges each finger individually using comfortable grips with spring-loaded finger piston technology for maximum flexibility.
• It is great for anyone who's into jiu jitsu, judo, rock climbing, lifting, grappling or any other sports where good grip strength/endurance is required, but also useful for musical instruments players(e.g., piano, violin, guitar, etc.) and the likes. Or even if you are just looking to improve and condition hand strength, give it to go.
• It also helpful to shape your wellness and recovery. Works alongside physical therapy to help recovery from surgery, trauma, stroke, nerve damage as well as protecting against repetitive strain injury, arthritis and carpal tunnel. Exercising hand muscles and joints helps support these vitally important joints and keep them healthy.
• Dimensions: 15.47x 7.68 x 0.7087 inches (39.30 x 19.5 x 1.8cm)