SE When you have a hot environment up to 300°F, use a Sparkeater® to lift the load without marring the surface of the lifted piece. Also, when doing stage rigging, order this product with a black cover for the protection it gives from exposure to fire, heat, sparks and pyrotechnics. These slings are made from Aramid high performance core yarns. The Offshore Certification Bureau identified these slings as being as good as wire rope or chain for use in offshore applications in the oil industry. As with all Twin-Path® slings, an inner red cover provides an early warning safety alert.