Finger Strengthener – Adjustable Finger Trumpet The Isometric Finger Strengthener from RPM Powerl® is the perfect tool for anyone looking to build finger grip strength / regain finger strength and flexibility after injury. DEXTERITY & FLEXIBILTY: Ideal for musicians, desk workers, work involving dexterity, the Isometric Finger Strengthener allows you to target and strengthen individual fingers for enhanced joint dexterity and flexibility. WARM UP: This pocket-sized Finger Strengthener can be conveniently stowed away in your pocket or bag for warming up before a music show or practice session. It is also highly practical for sports requiring powerful finger grip strength and endurance, such as climbing, golf, martial arts and tennis. BEST RESULTS: We recommend that you PRESS AND HOLD the buttons for periods of 15, 30 or 60 seconds (isometric resistance) depending on strength and fitness level.
