This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else. NFPA Version: Exceeds tests for national fire protection association standard on fire service life safety rope and system components NFPA 1983-2006 edition. *Not Certified*|Weight: 0.75 lbs (Bushing), 0.5 lbs (Bearing)|MBS: 8,000 lbs (35kN)|Rope Capacity: 1/2"|Side Plates: Stainless Steel|Sheave: 2" Steel (435524), 2" Aluminum (Others)|Axle: Stainless Steel|Size: 5x2.5