LapWorks No-Slip Pads for Any 12 to 13 inch swivel Reinforced Foam Rubber cushions and protects. Protects your valuables from scratches and slips. Perfect fit for LapWorks 12 inch swivel Has a very strong adhesive backing, so it won't peel. 3 diameters to choose from: 10 inch, 12 inch, 15 inch