Hand exercise device, grip strength device, finger forearm, muscle training, bubble grip, portable fitness equipment

Hand exercise device sports grip hand device strength device finger forearm muscle training grip bubble film fitness product: grip material: flexible steel spring color: blue, red size: 12.5 × 9 cm package includes: one piece suitable for: adult use: finger and hand strength training, fitness equipment, fitness. description: · Use a flexible stainless steel spring, strong grip, and long service life. · Does not take up space, easy to carry, commonly used for fitness. · Unique shape, strong and durable. · Strengthen hand muscles and eliminate pain. notes: · Due to manual measurement method, the measured size may vary slightly. · Because of the angle and light effect during photography, the color may slightly differ.