Cold Steel Delta Dart Sheath with Neck Chain SK92DD. Specifications for Cold Steel Delta Dart Sheath with Neck Chain SK92DD: Manufacturer: Cold Steel Fabric/Material: Secure-Ex Features of Cold Steel Delta Dart Sheath with Neck Chain SK92DD: Made of Cordura Protects knife. Protects user. A good investment to protect and preserve a sharp edge. A necessary investment for your Delta Dart. Package Contents: Cold Steel Delta Dart Sheath with Neck Chain SK92DD Tek-Lok Compatible Replacement Secure-Ex neck sheath and bead chain lanyard Cold Steel SK92DD: Delta Dart Sheath with Neck Chain