Ronstan Series 60 Core Block - Mast Base, Clevis Pin Head MUDX does not have test button

does not have test button and they have a fixed 1 1/8" 28mm outlet

allowing it to be retro fitted to practically all other sender brands

Available in body lengths

Includes mounting bolts -

Elevate your control on the water with this top-notch steering kit

Ronstan Series 60 Core Block - Mast Base, Clevis Pin Head MUDX does not have test buttonCore Blocks are a true all round solution. A tuned 2 stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for