Color: Body & Spring Set of 6 Material: Alloy Steel Brand: JON TORUDO Item Weight: 1.2 kilograms Product Dimensions: 30 cm length x 23 cm width Manufacturer: JON TORUDO 【Adjustable Load Up to 265kg】 Adjustable from 20kg to 265kg, with 6 spring settings to accommodate beginners to professionals. Equipped with 6 springs, compared to the usual 2, enabling intense training. 【Japanese Guide Included for Easy Load Understanding Based on Spring Position】 The Japanese instruction manual includes a load chart for each spring attachment position, allowing you to start training with the optimal load immediately after purchase. 【Durable Professional Specifications Using High-Quality Steel】 Designed with sturdy, high-quality steel to withstand everyday use and serious training. 【Comprehensive Strengthening of Grip, Wrist, and Forearm】 Strengthens not only grip strength but also wrist and forearm muscles in a balanced manner. This also leads to improved performance in daily life and sports. 【Suitable for a Wide Range of Ages and Genders】 With easy operation and a wide range of load adjustments, it is ideal for men and women, as well as for maintaining muscle strength in the elderly.