1. Ergonomic Design: Ring shaped grip strength trainer, fits the palm shape, uniform force. Anti slip texture, conform to ergonomic design, easy to hold and operate. 2. Stimulate Acupuncture Points: High elasticity, no deformation. Simulate the corresponding hand acupuncture points, reflect the corresponding tissues and organs. 3. Applicable People: Suitable for office worker, people with insufficient arm strength, people who use mobile phones for a long time, applicable for finger rehabilitation training. 4. Silicone Material: Hand grip strengthener adopts high quality silicone material, one piece hot press forming, soft and skin friendly, wear resistant and durable. 5. Compact And Portable: Light weight and in small size, easy to store and carry, can be easily put into your pocket, for home, office, outdoor travel, etc. Spec: Item Type: Hand Grip Strengthener Material: Silicone Color: Dark Green, Black Grip Strength: Approx. 23kg 50lb Efficacy: Stimulating acupuncture points: The hand is a holographic node reflection area, stimulates the corresponding hand acupuncture points, reflect the corresponding tissues and organs, so as to relieve the body and mind and strengthen the body. Applicable People: People with insufficient arm strength, people who use mobile phones for a long time, people who work at the desk for a long time, finger rehabilitation training, leisure decompression packing list: 2 x Hand Grip StrengthenerStimulate Acupuncture Points: High elasticity, no deformation. Simulate the corresponding hand acupuncture points, reflect the corresponding tissues and organs. Compact And Portable: Light weight and in small size, easy to store and carry, can be easily put into your pocket, for home, office, outdoor travel, etc. Ergonomic Design: Ring shaped grip strength trainer, fits the palm shape, uniform force. Anti slip texture, conform to ergonomic design, easy to hold and operate. Applicable People: Suitable for office worker, people with insufficient arm strength, people who use mobile phones for a long time, applicable for finger rehabilitation training. Silicone Material: Hand grip strengthener adopts high quality silicone material, one piece hot press forming, soft and skin friendly, wear resistant and durable.