Closed rivets are used 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 listed price is for a pair as shown in the photograph!This size rivet is used for beta biothane straps.The correct rivet size is always determined by the thickness of the material being joined, such as biothane, nylon strap, leather, or textile. Always add 2mm to the thickness of the material.Material: SteelFinish: Matte black