Non-conductive fiberglass rails ideal for working near electricity. Rail shape improves ergonomics and comfort for user while climbing Interlocking side rails Direct rung to rail construction Heavy Duty extruded rung locks are spring loaded to operate smoothly Heavy duty, self-aligning, free-swinging shoe with slip-resistant rubber pads Scratch-resistant molded end caps External guides at top of base section securely interlock rails Weight 14.1kg Working Height 15ft (4.6m) Load Capacity 150kg Ladder Height 16ft (5m) Max Working Length 13ft (4m) Sections Double Sections Closed Length 8ft