The Ronstan 45mm Wire Block features a durable tubular rivet head and a removable Nylatron® sheave, designed for effortless installation and reliability in marine applications.

• Narrow sheaves designed to minimize chafing
• Removable sheave allows for easy fitting without cutting wire termination
• Flared cheeks enhance performance
• Ideal for halyards, vang, and backstay applications
• Constructed with Grade 316 stainless steel cheeks and Nylatron® sheave