Rubbered of effective protection: The rubber coating has good friction and primarily avoids scratches and damage to the pressure or other sensitive iron surfaces. High-level neodymium magnets: neodymium magnets rubberized particularly strong tensile force.43mm diameter over 10kg of detention. M6 thread: with threaded cones in the screw size M6. for screwing and assembling. Use: neodymium magnets rubberized with threads can attach your carights, perspective mirrors, door bells, cameras, solar lights, tools in the tool room, etc.With more use, you find surprises. Package includes: there is 8-part neodymium magnets rubberized.Neodymm magnets of rubberized comes with nuts, washers, spacers. Color: Black Material: rubber Package Contents: 8 x part neodymium magnets Only 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.