1、BEST HAND EXERCISER - There are 20lbs/40lbs/60lbs/65lbs optional, can choose according to the tension you want, You can train fingers individually or together with different tension force applied. 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、ERGONOMIC DESIGN - This perfect design leads you maximize motions of range in exercising. type adjustment can be worn by anyone with comfortable fit, regardless of wrist circumference. 4、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. 5、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.