1.The overall pure copper is made by CNC process, weighing about 0.52kg;2.Two gold-plated 3.5mm audio jacks are used internally for connection;3.Manual welding of internal silver plating line;4.The contact is made of stainless steel with gold plated surface to strength and contact;5.Four disc ball bearing and imported bearing smooth overall movement;6.Full set of Fangsheng titanium plated screws and customized copper adjusting screws;7.The left and right magnetic elasticity can be adjusted respectively, and the bottom is flat and padded with rubber pad, which is as stable as a rock.Product name: JCY 56 cw keyMaterial: metalcolour: goldPackage Contents:1 x Poland JCY 56 gold key1 x Special anti-collision protection cotton for keys1 x Key connecting wire1 x Special key adjusting wrench1 x High strength suit gold box for keyOnly the above package content, other products are not included.Note:Light reflection and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.