Professional-Grade Aluminum Alloy Hand Grip Strengthener Arm Exerciser

Product information:
Applicable Scenarios: Health Massage, Sports Trend
Colors: Black Non-Grooved, Silver Non-Grooved, Black Fine-Grooved, Silver Fine-Grooved, Black Non-Grooved Set (Colored Box with Sponge Cover), Silver Non-Grooved Set (Colored Box with Sponge Cover), Black Fine-Grooved Set (Colored Box with Sponge Cover), Silver Fine-Grooved Set (Colored Box with Sponge Cover)
Specifications: Spring Steel
Material: Steel
Suitable For: Children, Teenagers, Adults, Seniors