Rubbered floor of high quality protection: The rubber coating has nice friction and mainly avoids scratches and harm to the stress or other touchy iron surfaces. High-level neodymium magnets: neodymium magnets rubberized specifically stable tensile power 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, angle mirrors, door bells, cameras, solar lights, devices in the gadget room, etc extra use, you'll find surprises. Package includes: there may be 8-part neodymium magnets rubberized magnets of rubberized comes with nuts, washers, spacers. Color: Black Material: rubber Package Contents: 8 x section neodymium magnets Only the above equipment content, varied products shouldn't included. Note: Light reflection and various exhibits can cause the colour of the thing within the photo slightly various from the real thing. The length allowed error is +/- 1-3cm.