Our MagFlex sheets with brightly coloured laminated PVC fronts are ideal for creating signs and are available in white, red, black, yellow, green and blue. Each sheet is magnetised with a striped north-south magnetic field giving a secure grip. What's more, each sheet can be rolled to a 1/2 inch (12.7mm) diameter without cracking and of course, each sheet is made from non-toxic material. These sheets are not suitable for sticking 'hard' permanent magnets too as the strong magnetic field will realign the magnetic particles in the sheet, significantly weakening its own magnetic field. This A4 sheet measures 297mm x 210mm x 0.85mm thick and is magnetic on one side only with a striped north-south magnetic field to give a secure grip. The green laminated PVC is on the non-magnetic side. Each MagFlex sheet has a pulling force of 40g/cm2 and is made from non-toxic, environmentally friendly EN71 material.