Bullet Points: 1、PROFESSIONALS 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.  2、HIGH GRADE MATERIAL: Finger band is made of silicon with great elasticity and high grade neoprene and strap make the product perfect for anyone   3、BEST HAND EXERCISER: You can train fingers individually or together with different tension force applied.  4、ERGONOMIC 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.  5、COST 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:  Hand yoga is designed mainly for rehabilitation and exercise of fingers and overall hand with different tension levels of finger bands. The more the fingers are spread out, the stronger the silicone tensions applied. This product can be used for both right and left hand by simply interchanging the product.  This finger stretcher is ergonomically designed, so it gives comfortable fit with proper adjustment to each individual.  It is mainly focused on the fingers and overall part of hand rehabilitation and exercise of muscle.  Who needs hand yoga?  Physical/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 Exerciser  Material: silicone, alloy, fabric  Weight: about 65g  Color: green (20 pounds), blue (40 pounds), red (60 pounds)