Nite Ize Figure 9 Carabiner Rope Tightener / Tensioning Tool - Black Large. Clipping into your rope allows you to use the dual-purpose carabiner to pull the rope tight to increase tension or loosen the knots at the same time for a quick tighten every time. It also features a distinguishing ridge on the back that allows for an easy attachment to your carabiner or keychain. Specifications for Nite Ize Figure 9 Carabiner Rope Tightener / Tensioning Tool: Manufacturer: Nite Ize Color: Black Size: Large Weight: 0.42 oz Carabiner Type: Accessory Biner Non-Locking Biner Carabiner Size: Compact Climbing Hardware Type: Accessory Biners Fabric/Material: Aluminum Package Contents: Nite Ize Figure 9 Carabiner Rope Tightener / Tensioning Tool Nite Ize Figure 9 Carabiner Rope Tightener / Tensioning Tool - Black Large C9L-02-01