The ISC KH407 Pear-Shaped Carabiner (also known as a scaffold hook) is a large, strong steel carabiner with a wide gate opening. This makes it ideal for attaching to big anchor points. Because of its large gate opening we recommend these for use with our 3 ply free ropes as they fit the steel eyes on the ropes. The gate closes with a two-way twist locking mechanism. It also comes supplied with a captive pin to keep cables, chain or other rigging kit collected at one end. This has more use when the carabiner is used as a scaffold hook than when rigging aerial circus equipment but it might come in handy. This carabiner measures 9.25" x 5.3" (235mm x 135mm) and weighs 1.5lbs. This zinc plated steel carabiner has been tested up to 35kN. See the specs tab for full technical details. Complies with EN 362 and is CE certified.