Ronstan Series 40mm Single Cheek Block Battery Switches Tough and flexible polyurethane polymer

Tough and flexible polyurethane polymer forms strong bonds

"Trip Free"—cannot be held closed after trip

Fits the standard 1-1/4" T-track

install on ports of your choosing

female POL receptacle block

Ronstan Series 40mm Single Cheek Block Battery Switches Tough and flexible polyurethane polymerAll purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double