<b>Features：</b><br/> Smart Counting Grip Strengthener<br/> Easy-Adjustable Resistance<br/> Ergonomic Design<br/> Portable<br/><br/> <b>Application：</b><br/> Power and flexibility of forearm, wrists, fingers training; muscle building.<br/> Rehabilitation of hand injury, rheumatoid arthritis, arthritis, carpal tunnel, tendovaginitis, <br/>fractured, broken wrist, and tendon surgery.<br/><br/> <b>Package: </b><br/> 2 packs of Hand Grip Strengthener<br/><br/> <b>Customer service:</b><br/> We provide excellent customer service. If you have any question, , we will provide you the solution to get your 100% satisfaction. <br/>