DESIGNED TO INCREASE YOUR GRIP STRENGTH: Increase your grip strength, is the perfect way to build hand strength and increase your grip. As your hands get stronger, youll be able to lift heavier weights. PERFECT PROGRESSION KIT: 3 pack, 150 lbs, 200 lbs and 250 lbs. 3 different weights corresponding to 3 training levels, let you feel the strength promotion of your fingers, wrists and arms step by step. PREMIUM AND DURABLE QUALITY: Made with premium durable aluminum knurled handles and high quality spring. Aluminum handles are both strong and lightweight, gentler on your hands while giving you a great workout. ALWAYS EXERCISE YOUR HAND ANYWHERE: Thanks to its pocket size, you can take these grips with you and exercise wherever you go. You can use them while you are in the office or even on a trip, it transforms your time free into a productive workout. session. PERFECT ITEM FOR DAILY STRENGTH TRAINING: Ideal for finger, wrist and forearm training, building hand strength, increasing finger grip and flexibility for climbers, basketball players, players tennis and even online athletes. By strengthening your hands, create hands of steel.