[DURABLE CONSTRUCTION]Professional made with high carbon steel structure grip trainer, this finger grip set will serve you for years. The aluminum handle is sturdy and lightweight for a gentler feel while still giving you a great workout.[Hand Trainers]Unlike workouts, you can take these hand trainers with you and exercise anytime, anywhere. at home, in , or while traveling to turn your rest time into a productive workout session.[Grip Strengthener]For your forearm and arm strengthener, and wrist, these grips the perfect way to strengthen your hand and increase your grip strength. As your hands get stronger, you will be able to heavier weights.[Perfect Combination]Six suits to meet everyones needs. from a 6-pack contains 100-350 lb grippers, each hand strengthening device increases in 50 lb increments, allowing users to gradually increase resistance and build strength. High Wear-resistant and durability.Material: High carbon steel + aluminum alloycolour: silver + blackPackage Contents:1 x 100LBS Grip strength trainer1 x 150LBS Grip strength trainer1 x 200LBS Grip strength trainer1 x 250LBS Grip strength trainer1 x 300LBS Grip strength trainer1 x 350LBS Grip strength trainerOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.