Closed rivets are used where both sides of the rivet are visible or when the rivet comes into contact with another surface, for example, bag handles, grips, leashes, collars, harnesses, etc.The listed 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 strap, leather, or fabric. Always add 2mm to the thickness of the material.Material: SteelFinish: Brass-plated