Ronstan RF45151 40mm Cheek Block | Series 40 Fixed Mount PulleyThe Ronstan RF45151 Cheek Block is a fixed mount 40mm pulley block designed for deck, bulkhead, or mast installation. Part of the Ronstan Series 40, it features a UV stabilised acetal sheave, ball bearing system, delivering high strength and low friction performance in a compact, durable form. Ideal for vangs, outhauls, cunninghams, and control lines, the RF45151 provides clean, reliable line routing in space restricted areas. Its built to withstand

and aluminium

Improved marine communication reliability

it cures fast and forms a strong

and sailboats

installation is quick and reliable—making it a preferred choice for both marine professionals and DIY boat owners

and spinnaker sheet applications on boats up to 12m (40ft)

Hella Marine NaviLED Port & Starboard Navigation Lights – 2NM Pair

this block features a 20mm acetal sheave running on precision stainless steel ball bearings

and durable for marine use

Suitable for use on fibre-glass

Whether you're fine-tuning control lines or building a compact purchase system

manual 1-speed winch made from polished stainless steel