HARKEN25 mm Thru-Deck Wire Block, 302 Type_Single They keep the block aligned

They keep the block aligned correctly by pushing the lashing line to the outer edges of the block's head

SS cheeks with Delrin(tm) plain bearing sheaves (705 series)

Sailors will appreciate the minimal stretch when the gloves get wet and how they dry soft to the touch

along with the Caulk Removal Tool

HARKEN25 mm Thru-Deck Wire Block, 302 Type_Single They keep the block alignedHarken 25mm Thru Deck High Strength Block allows lines through the deck and bulkhead. Harken's Lightweight, low friction blocks with high load composite bearings carry wire halyards and control line cascades. Side load balls reduce friction from twists or unfair leads on 304 311. 300 303 has thrust washers. Blocks open to allow passage of swaged wire. Hard Lube anodized sheave for strength and corrosion resistance. Cheek blocks include fasteners. Wire