General description Neodymium Magnets are extremely strong N52 metal magnets, perfect for a variety of applications. This set includes 18 pieces of magnets, each measuring 12 x 16 mm. They are ideal for attaching posters and notes to flipcharts, serving as hooks on metal surfaces, and functioning as note holders on refrigerators, bulletin boards, and chalkboards. Please note that these magnets are not suitable for glass magnetic boards. Technical specifications Type: Neodymium N52 Quantity: 18 pieces Dimensions: 12 x 16 mm Holding capacity: Each magnet can hold up to 20 sheets of A4 paper Coating: Triple coated with nickel-copper-nickel for corrosion resistance Usage Attach posters and notes to various surfaces Use as hooks on metal surfaces Hold notes on refrigerators and bulletin boards Ideal for chalkboards and whiteboards Other information Easy-to-grip conical shape for convenient removal and repositioning Final nickel layer provides a smooth, scratch-resistant surface