The White Water stainless steel heavy duty jaw slides are cast from marine grade stainless steel 316. These heavy duty jaw slides differentiate from the standard jaw slides in that there is extra casting to support longer set screws used to secure inserted tubing in place. These jaw slides are perfect for replacing worn-out fittings or even plastic fittings that came standard with your bimini top. This particular jaw slide accommodates 1" diameter tubing. Sold as pack of 2.