Neodymium Rubber Coated Magnet Disc. Rubber coated magnet pots are made up of 6pcs super strong neodymium magnets and a backed steel plate which was capsulated by a rubbber, it has a special multiple pole magnetic instruction and the adhesive force of these neodymium magnets have been amplified a lot. Its rubber coating can protects the sensitive ferrous surface from scratch like painting ,polished or other sensitive surface. Attached to ferrous surface of vehicle, metal shelving and kinds of machines , the magnet pot can create a permanent or temporary fixing point avoiding fixing into. Note: 1)The magnetic pull force 42kg was tested using a computer-controlled tensile tester, it is the vertical pull-force which make the fishing magnet pull way from the steel plate 10mm thickness under perfect condition. The actual pull force will vary mainly depending on the following variables: a: Steel thickness (The thinner the steel, the lower the pull force), 42KG vertical magnetic pull force was got on base of 10mm thickness steel Plate. b: Pulling direction (The bigger of the pulling direction beyond 90°, the lower the pull force, normally the Pull force in horizontal direction is only about one third of that in vertical direction ) c: Attracting position (The farther beyond the center of gravity, the lower the pull force). In addition, iron chips of magnetic surface also reduce the pull-force of magnet at some extent. 2) Magnet just only attract iron , ferrous metal and nickel, do not attract gold, silver, copper, aluminums and their alloy and stainless Steel. 3. Magnetic force concentrates on the bottom of the fishing magnet, there is hardly any magnetic force of other surfaces . Colour: Black 1. Part Name: D88mm Rubber Coated Magnet With M8 External Thread 2. Material:Neodymium Magnet +steel + Rubber 3. Size:D88mm(Diameter)*8mm( Magnetic Base Thickness) 4. External Thread : M8,25mm length, 15mm length available 5. Vertical Pull-force:42KG Horizional Pull-force:8.4KG on base of 10mm steel plate 6. Max Working Temperature:80 degrees Product Features: 1. Strong Pull-force due to high grade Neodymium Magnet N45 and Steel Plate 2. Rubber Coating avoid scratch of painting or other sensitive ferrous surface Numerous Application: Working &signal lighting , cameras,fixture and others Warnings: 1. This magnet is very powerful for their sizes and may pinch your fingers badly; 2. Keep away from Children of all ages. 3. Do not allow magnets to jump together or onto a metal surface, Special care always needs to be taken when handling. Package included : 2 x Magnetic Base Bracket (The lights are not included) Only the above package content, other products are not included. Note: Light shooting 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.