I am selling this item because I no longer need it. I used it for about 3 years from new. I have not dropped the product, so it works without any problems. ↓ The following is quoted from the PETZL official online store ↓ PETZL ID's Self-braking descender with anti-panic function for work at height and rope access 【Specifications】 Material: Aluminum, Steel Weight: 600 g Maximum working load: 250 kg Certifications: EN 341 type 2 class A, CE EN 12841 type C, CE EN 15151-1, ANSI Z459.1, Z359.9, NFPA 2500 Technical Use, UKCA, EAC, GB/T 38230 II A, XF494 – FZL-X-Q10/11.5