BRAND: Shopoflux™ IMPORTANT FEATURES: Stainless steel extension springs Solid steel hinges Adjustable weight knob Ergonomic design Features rubber ergonomic handles: This hand exerciser from Shopoflux comes with rubberised handles. The handles allow for a non-slip grip and help in making sure that you do not bruise your hands while doing your exercises. Stainless steel extension springs: Equipped with a stainless steel extension spring, this fitness accessory promises to be durable. It can help you to perform your exercises without any hassle. Adjustable weight knob: One of the most attractive features of this training accessory is that it comes with a weight knob. You can turn the dial in either side to increase or decrease the weight within the range of 10 to 40 Kg, according to your preference. Fits all hand sizes: This hand exerciser from Shopoflux has been designed to fit all hand sizes. It can be used by men, women, elders and teenagers alike for an excellent training session. Comes with steel hinges: Shopoflux presents this hand exerciser, which comes with steel hinges. The steel hinges ensure that the spring is attached properly so that it lasts long. For stronger forearms: If you want stronger wrists, this hand grip exerciser will be a perfect fit. It will help you to build strong wrists by working the radioulnar joint in the wrists while also building up your forearms.