For use with any 1-1/2inch diameter spiral-wound pool hose Threaded inside cuff. Inside threading ensures a secure connection. To Connects a pool hose to vacuum and vacuum skimmer inlet hole Simply place cuff over exposed hose end and twist to tighten securely. ABS plastic holds up under the harsh environment size:4.5x10cm Material:ABS colour:White Package Contents: 2 x Pool hose replacement port Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. To Connects a pool hose to vacuum and vacuum skimmer inlet hole ABS plastic holds up under the harsh environment Threaded inside cuff. Inside threading ensures a secure connection. For use with any 1-1/2inch diameter spiral-wound pool hose Simply place cuff over exposed hose end and twist to tighten securely.