Screwed pad eyes. Made of AISI 316 S.Steel. This solution allows an easy removal of the pad eye from the deck. They can be fitted with a block and a stand-up spring. Blocks with screwed pad eyes include: block with spring and (removable) pad eye and the base (fixed to the deck). The same base is suitable for blocks of different sizes: same base for 70 and 80 mm blocks, same for 100 and 120 mm blocks and one for 140, 150 and 180 mm.