Eight (8) small clear round non marking polyethylene vinyl feet with removable metal insert for extra strength. The dimensions are a little larger than 1/2 inch wide (.671) and 1/4 inch (.250) in height - see below. These are high quality polyethylene vinyl rubber feet. The durometer (hardness) is 84 shore A. The metal insert center hole is .155 inches wide and accepts a #6 truss head bolt or #6 screw and can be removed to accommodate a larger bolt / screw. This item is perfect for small radio gear, cutting boards, electronics, crafts and other items that require small rubber feet. Quantity - 8 Color - Clear Description - Small Clear Round Polyethylene Vinyl Non Marking Rubber Foot Height - .250 (1/4 inch) or 6.350 mm Top Width - .671 (little larger than 1/2 inch) or 17.04 mm Tapered Bottom Width - .583 (little larger than 1/2 inch) Removable Metal Insert Center Hole Size - .155 inch Bolt / Screw Size - Accepts #6 Truss Head or #6 Screw Material - Polyethylene Vinyl Durometer - 84 Shore A REACH & RoHS Compliant - Restrictive of Hazardous Substances / Conflict Mineral Free / 3TG, BPA Free - Proudly Made in the USA.