Whether you want to build dexterous, resilient fingers for hours of guitar wizardry, guitar hero wizardry or if you're just looking to strangle a lot of people with your bare hands, the Planet Waves Varigrip Adjustable Hand Exerciser will get your digits in top form.

The Varigrip conditions your fingers, hand, wrist and forearm with adjustable tension and even simulated strings to keep your fingers in playing shape even when you're away from your guitar. Set tension from light to hard individually for each finish, so if you've got weak pinkies, build them up to snuff.

You can perform these exercises with the Varigrip:

• Palm to Tip: Strengthens forearm, wrist, and hand muscles. Practicing scale pattern will build speed and dexterity
• Thumb to tip: Builds individual finger strength along with forearm muscles. Practicing scale patterns will build speed and dexterity
• Thumb Squeeze: Strengthens thumb-area muscles while increasing endurance
• Fist Grip: Strengthens and increases endurance of entire hand and forearm muscles
• Chord Press: Builds endurance in the thumb and forearm for chord playing. Great for beginners learning bar chords
• Callus Builder: Flip the rubber palm grip to piston side of the Varigrip to expose the simulated strings. Use the palm to tip, thumb to tip, or chord press exercises to build and maintain calluses while building muscle strength and endurance

Senior Product Manger, Brian Vance uses sports metaphors to get the point across:

“Like top athletes, a musician’s dedication to good practice techniques and conditioning can make a big difference in their ability to reach their ultimate potential. While practice might not actually make perfect, good practice habits will get you a lot closer to your goal and we’ve created the perfect strength building tool for players anywhere, any time.”