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 listed price is for a pair as shown in the picture!This size of rivet is used for beta biothane straps with a width of 13-19 mm.The correct rivet size is always determined by the thickness of the material being joined, such as biothane, nylon webbing, leather, or fabric. Always add 2mm to the width of the material.Material: Stainless Steel (AISI 304)