Closed rivets are used in situations where both sides of the rivet are visible, or where the rivet comes into contact with another surface, such as bag handles, grips, leashes, collars, harnesses, etc.The price is for a pair as shown in the photo!This size of rivet is used not only for beta biothane straps.The correct size of the rivet is always determined by the thickness of the material being joined, such as biothane, nylon webbing, leather, or textile. Always add an additional 2mm to the width of the material.Material: SteelFinish: Antique Copper