Ronstan RF8081BLU Sheaveless Block 3/8" Line 3/8" Webbing Blue

The Ronstan RF8081BLU is an ultra-lightweight sheaveless block designed for high-performance sailing, kitesurfing, paragliding, and control line applications. With no moving parts, this innovative block provides ultimate durability and maintenance-free operation, making it ideal for environments where sand, grit, and salt water would compromise traditional bearing systems.

Key Features:

• Sheaveless design eliminates moving parts for maintenance-free durability
• Ultra-lightweight at only 12g (0.42 oz) with 1,000kg (2,200 lbs) breaking load
• Accepts lines from 1.4mm (1/16") up to 10mm (3/8") diameter
• Compatible with hi-tech uncovered braids and traditional double braids
• Elongated attachment aperture optimized for soft attachment and webbing
• 3-dimensional geometry is gentle on lines while tolerating poor lead angles
• Color-coded blue anodized aluminum construction
• Impact resistant and grit/salt resistant

Applications:

Perfect for high-performance dinghy rigging including tweakers, vangs, trapezes, cunninghams, and barber haulers. Also ideal for kitesurfing control lines, paraglider systems, power kites, lazy jacks, sail covers, tie-downs, and hoists.

Specifications:

• Line Diameter Range: 1.4mm - 10mm (1/16" - 3/8")
• Dimensions: 36mm L × 24.8mm W × 14.5mm H (1-7/16" × 1" × 9/16")
• Breaking Load: 1,000kg (2,200 lbs)
• Weight: 12g (0.42 oz)
• Material: Anodized Aluminum
• Color: Blue