Barnett Crossbows Demun Hyperbolts 1005381. They come with an integrated half-moon nock for consistent and easy string positioning. Specifications for Barnett Crossbows Demun Hyperbolts 1005381: Manufacturer: Barnett Crossbows Color: Black Features of Barnett Crossbows Demun Hyperbolts: Dual-color carbon bolts for Demun mini crossbows 3-fletch for stability and precision Half-moon nock for easy and secure string placement Six-pack for convenient replenishment Package Contents: Barnett Crossbows Demun Hyperbolts