Mirror Nailhead, Size 40, Solid Brass, Colonial Copper Finish, 250 pieces per pack Brass Made in US 250 pieces per pack Heavy duty solid brass construction provides the highest quality finish Sharp prongs pierce most materials and curl over for the most comfortable fastening Made in the USA by C & C Metal Products Prong Length = 0.112 In., Assembled Height = 0.12 In., Diameter = 0.368 In