Bullet Points: 1PROFESSIONALS RECOMMENDED: Hand yoga is being used many international professionals in various fields such as musicians, physical therapist, doctors, and technicians for their healthy hand and finger. 2HIGH GRADE MATERIAL: Finger band is made of silicon with great elasticity and high grade neoprene and strap make the product perfect for anyone 3BEST HAND EXERCISER: You can train fingers individually or together with different tension force applied. 4ERGONOMIC DESIGN: This perfect design leads you maximize motions of range in exercising. Adjustable wristband can be worn by anyone with comfortable fit, regardless of wrist circumference. 5COST EFFECTIVE: Do not have to buy other item for your hand training. You can use it for your right and left hand training both with simple way at any place. Three tension options: 20lbs,40lbs,60lbs. Description: Handyogaisdesignedmainlyforrehabilitationandexerciseoffingersandoverallhandwithdifferenttensionlevelsoffingerbands.Themorethefingersarespreadout,thestrongerthesiliconetensionsapplied.Thisproductcanbeusedforbothrightandlefthandbysimplyinterchangingtheproduct. Thisfingerstretcherisergonomicallydesigned,soitgivescomfortablefitwithproperadjustmenttoeachindividual. Itismainlyfocusedonthefingersandoverallpartofhandrehabilitationandexerciseofmuscle. Whoneedshandyoga? Physical/rehabilitationtherapist. Doctors,technicians,etc.whoneedelaboratemanuallabor. Amusicianlikepianist,violinist,etc. Occupationsthatfrequentlyusecomputerkeyboardsuchasofficeworkers. Specifications: Name:FingerExtensorExerciser Material:silicone,alloy,fabric Weight:about65g Color:green(20pounds),blue(40pounds),red(60pounds)