1. RECOMMENDED: Hand yoga is being used many in such as musicians, therapist, doctors, and technicians for their healthy hand and finger.2.<br> HIGH MATERIAL: Finger band is made of silicon with great elasticity and high neoprene and strap make the product perfect for anyone 3. BEST HAND EXERCISER: You can individually or with different tension force applied.4.<br> ERGONOMIC DESIGN: This perfect design leads you maximize of range in exercising.<br> Adjustable wristband can be anyone with comfortable fit, regardless of wrist circumference.5.<br> COST EFFECTIVE: Do not have to buy other item for your hand training.<br> You can use it for your right and left hand training both with simple way at any place.Who needs hand yoga?/rehabilitation therapist.Doctors, technicians, etc. who need elaborate manual labor.A musician like pianist, violinist, etc.Occupations that frequently use computer keyboard such as office workers.Specifications:Name: Finger Extensor ExerciserTension: 20lbsMaterial: Siliconecolour: GreenPackage Contents:1 x Hand Grip StrengthenerOnly the above package content, other are not included.Note:<br> Light reflection and different displays may cause the color of the item in the a little different from the real thing.<br> The measurement allowed error is +/- 1-3cm.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store