multifunctional spring grip men's professional hand training actuating arm muscle finger strength trainer fitness decompression wrist strength count

white-basic style (no counting finger pressure device) white-upgraded mechanical counting model (fingerless pressure regulator) white-upgraded electronic counting model (fingerless voltage regulator) white-shiatsu flagship basic style (no charge) white-finger pressure flagship mechanical counting model white-shiatsu flagship electronic counting model dark gray-basic style (no counting finger pressure device) dark gray-upgraded mechanical counting model (fingerless pressure regulator) dark gray-upgraded electronic counting model (fingerless pressure regulator) dark gray-shiatsu flagship basic style (no charge) dark gray-finger pressure flagship mechanical counting model dark gray-shiatsu flagship electronic counting model

0.21kg