Schaefer Twin Sheet Lead Blocks feature a side-to-side pivoting extra wide sheave and cage design that allows for the passage of two jib sheets simultaneously. These blocks are ideal on racing boats to allow for quick sail changes. Their low profile design keeps sheets close to the deck for proper lead to deck mounted winches. Constructed of heavy-duty, black anodized aluminum with sheaves that feature NTE Nomex/Teflon bearings. Spring pin stops allow quick adjustment for changing wind conditions.

Important: The crossmember of the "T" on 1 1/4" T-Track (aka Imperial or English) is 3/16" (~4.75mm) thick. The crossmember of the "T" on 32mm T-Track (aka Metric) is 6mm (~1/4") thick. The crossmember on 1" T-Track is 1/8" (~3mm) thick. When buying cars for existing track, make sure to match the car with your track.

Schaefer's 6061-T6 Aluminum T-Track incorporates a concave shaped riser that allows it to remain steady for spar mounting, or easily accept sealant for mounting to decks. Available in durable, black hardcote anodized, or silver (clear) anodized.

The Race Track features more closely spaced holes to allow racers to fine-tune sails with three times the granularity of normal T-Track. Also works well with reefing blocks and spinnaker mast eyes. Available in black anodized only.