Description: Materials: high strength PVC Tightening Length: approx. 80mm/ 3.15 inch One end inner diameter: approx. 19mm/ 0.75 inch; Outer Diameter: approx. 24mm/ 0.94 inch The other end inner diameter: approx. 22mm/ 0.87 inch; Outer Diameter: approx. 25mm/ 1 inch The fitting can be used to connect frame of the inflatable/ fishing boat bimini top, awning or sun shelter. Package Includes: 4 Pieces Boat Bimini Top Fittings