1. Product Name:Finger Master Hand Strengthener
2. Material: ABS
3. Size: Adult section:
Intensity adjustment range: 4Lb-7Lb
Size: 87mmx68mmx23mm
Weight: 74g
Child models:
Intensity adjustment range: 2Lb-3Lb
Size: 76mmx64mmx19.5mm
Weight: 74g
4. Functions and features:
1> all-round exercise finger strength and sensitivity
2> free expansion can be solved faster guitar beginners difficult to open the ring finger, little finger trouble
3> intimate curvature of the design, so that more fit the palm of that force, a more natural diet efforts