Barton Marine Size 3 45mm Plain Bearing Pulley Block Double w/Swivel [N03230] Cartography | Garmin BlueChart White or Black UV-resistant Polycarbonate

White or Black UV-resistant Polycarbonate housing

All set up and calibration constants are saved to a nonvolatile memory

Ventura outlets are rigorously tested for UV exposure and waterproofing

Magnetic Tool Holder Combo 2

Tin-plated copper bus for maximum conductivity and resistance to corrosion

Barton Marine Size 3 45mm Plain Bearing Pulley Block Double w/Swivel [N03230] Cartography | Garmin BlueChart White or Black UV-resistant PolycarbonateSize 3 45mm Plain Bearing Pulley Block Double with Swivel The size 3 Barton plain bearing blocks have a 45mm (1 3 4" sheave size 3 block range that incorporates modern design with stainless steel frames and the latest advanced materials, using 30% fiberglass filled nylon and Acetal sheaves to maximize their strength while keeping weight to a minimum. Suitable for use as mainsheet, vangs, lead blocks, or wherever a powerful and compact purchase system