Large Head Brass plated steel tack ring with a high domed head can be used to trim the bridle harness on rocking horses. Many other upholstery and craft uses. Size 13/16"( just under 7/8") diameter. Overall length approximately 1-1/8". Nail extends 3/4" into surface. To install, simply hammer-tap in. When installing on opposite sides of horse head, offset positions slightly so nails don't hit each other. Sold per single piece.Use the drop down menu box at "please choose" for volume pricing.