Black Diamond Atc-Alpine Guide Envy Green. Specifications for Black Diamond Atc-Alpine Guide: Manufacturer: Black Diamond Color: Envy Green Features: Ultralight and compact at 73 grams Multiple friction modes for belay and rappel Auto-block release hole accepts small carabiners Durable cable holds its shape and resists getting caught up between ropes Guide mode works with one or two ropes Package Contents: Black Diamond Atc-Alpine Guide Black Diamond BD6200473011ALL1: Atc-Alpine Guide Envy Green