Lewmar 50mm Single Synchro Block Ronstan Series 15 C/C: 2 3/4" x 3/4"

C/C: 2 3/4" x 3/4" (70 mm x 19 mm)

B - 12 1/4" (310mm)

strong and removable

Ronstan Series 26 Stand-Up Spring

Wichard #8 Flat Stainless Ring

Lewmar 50mm Single Synchro Block Ronstan Series 15 C/C: 2 3/4" x 3/4"Product Description Lewmar 50mm Single Synchro Block Lewmar's Synchro Blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimized block geometry, a Free Spin bearing and self aligning head to reduce friction and increase efficiency by up to 40%, over budget blocks on mainsheet systems. Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother