Arborist-specific: In Rock Exoticafeets style, this sleek design offers climbers a light and strong rope grap. Features & Specs: MPN: RG2-90 Streamlined and orientated where your carabiner sits more naturally when one-handed positioning Not adjustable under tension Not for vertical ascent Needs tool to remove from lanyard; great safety feature Weight: RG2: 5.6 oz or RG4: 8.8 oz