Slim Stainless Steel 5" Twisty Key Ring. Lucky Line - Twisty Key Rings Strong, flexible, corrosion-resistant aircraft cable key ring. Unique patented locking mechanism assures keys stay put. Crimp for permanent closure. Use as a key ring or binder ring to hold products or documents together. Nylon coated cable and monofilament available in black, blue, purple, red, and green. (81101 bulk orders only) 82901 brass plated cable 84101 slim stainless steel, non-coated. Twisty Length is measured with the Twisty open and laying in flat line.