ISC TWISTER SUPERSAFE CARABINER by ISC Sold out Original price $48.95 Current price $36.95 SKU K255 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out The Twister carabiner was designed specifically for fliplines and life line terminations. Twisted climb lines are a thing of the past when you use a Twister! Double locking. MBS: 27kN; Wt: 5oz; Gate opening: 3/4”.