The From the Anvil Medium Pyramid Door Stud Pewter are sold in singles - they are easily fitted by way of a drive-in spike, unlike other studs on the market which have screw fixings. It measures at 20mm x 20mm. Pewter Stud The stud has a pewter patina finish - this has anti-corrosion properties and can be used internally or externally. To remove dirt deposits, simply wipe over with a lightly oiled cloth from time-to-time and this will restore it to its original condition. Do not use any form of aerosol spray or metal cleaner. Other Variations It is also available in a small or large size a...