WWIP Grip Heavy Duty Hand Strengthener: Exercise Hands for Strong Finger/Forearm/Wrist/Thumb Strength &ndash; Adjustable Extension Gripper Fits Left/Right Handed Men or Women &ndash; Soft Rubber Grips for Comfort INDEPENDENTLY TESTED TO ENSURE THE HIGHEST QUALITY: Our heavy-duty hand grip strengthener was third-party tested for durable construction. The equipment completed 11,000 cycles of repeated use with no cracking or adverse effects. This means no lost workout time for you due to a broken device, and the confidence to use it for years to come. The entire machine is strong, especially the spring and metal connector. No need to sacrifice comfort or value for all this strength either! TRULY VARIABLE RESISTANCE: One compact device that can take you from beginner to expert beats those old school, non-adjustable grips. Our solution also saves you money, because you dont have to keep buying strengtheners as you progress. With your WWIP Grip, you can feel an incremental increase each time you easily twist our smooth-turning dial anywhere from 20 to 90 lbs of resistance. Our maximum setting is still a challenge for athletes while the lower settings are suitable for others. PERFECT STOCKING STUFFER FOR ANYONE: Grandparents? Check. Teens? Check. Even try it at your next Yankee Swap! Who doesn't want increased circulation, stability, and reduced stress? From heavy strength training to bodybuilding workouts sculpting arms, forearms, wrist, fingers and thumb, you must know someone who'd benefit! Gift your loved ones overall health, refined motor skills, and injury rehabilitation. COMFORTABLE RUBBER GRIPS THAT WONT STAIN YOUR HANDS: Some reviews of competing hand grips complain of stains on the users hand from the dye in the rubber grips. They report having to scrub their hands with soap and hot water after each session of just a few reps. This inconvenience defeats the purpose of on-the-go use because you don't always have a sink handy, and you may stain something else of value in the process. WWIP Grips material will not leave any discoloration on your skin. BUY CONFIDENTLY WITH WWIP 365: Our free, full year manufacturers replacement warranty (shipping on us) protects your investment and removes all risk. The process is hassle-free to allow you to focus on getting stronger. We at WWIP believe in treating our customers as we would like to be treated. We strive for 100% satisfaction with your entire experience. The integrity of the product and service is paramount to us. We thank you for the opportunity to earn your trust and your business.