XH-22 Manual Lowering Device Detailed Product Description:· Manual Lowering Device has a unique braking system provides a constant, steady lowering speed.· Gears are large and tested to bear loads in excess of demand.· Castings are of non-corrosive aluminum and easy access to all internal working parts. · Ball bearings throughout for noiseless, smooth, and fully automatic operation.Technical Features:1.Packing Size: Main top:96*21*21cm, 96*21*21cm; 152*18*10cmSupport: 180*18*15cm, 100*30*24, 100*30*24cm, 180*18*15cm2.Gross Weightï¼?Support (one set): N.W: 57kg G.W: 60kgMain top (one set): N.W: 78kg G.W: 80kg Company FAQQuestion 1 What??s material of manual lowering device?Answer: Material is 304 Stainless SteelQuestion 2 Whether device can be adjusted according to body weight?Answer: Yes, tell factory requirements when give us an order.