OPENABLE WHILE ANCHORED: The triple-action moving side plate is quick and easy to open, even with gloves, allowing you to install the rope while the pulley remains connected to the anchor. COMPACT EFFICIENCY: Weighing just 145-160g, this ultra-compact pulley features a 25 mm mid-size sheave mounted on sealed ball bearings for excellent 91% efficiency. SWIVEL VERSATILITY: The swivel allows the pulley to orient under load; the "Open" version features a gated swivel for direct connection to rigging plates or carriages to save weight. VISUAL SAFETY: A red indicator on the side plate provides an immediate visual warning if the pulley is unlocked, ensuring secure closure during operation. TECHNICAL SPECS: Certified to CE EN 12278, NFPA 2500 Technical Use, and UIAA; Compatible with 7-11 mm ropes; 23 kN MBS; 5 kN Working Load Limit.