Purchase price includes a pair of sheaves for one chock.

It is very important that our Marelube TEF be applied to the threads of the fasteners that secure these sheaves to the rubrail. It may be purchased by clicking on the photo listed below under "Required and Related Products". Since they are stainless steel fasteners into aluminum and in a location where they are often subjected to salt water, it is almost guaranteed they will seize in place due to electrolytic corrosion without the application of Marelube TEF.