Fits any 500/600 series beacon. Provides reliable self-righting buoyancy for marine use. Includes lanyard. Specs: Provides Reliable Self-Righting Buoyancy- Comes With Lanyard- Fits All Standard 8" High E-Flare Beacons- Fluorescent Lime Prop_65: Reproductive Harm Case Quantity: 12 Case Length: 30.5 Case Width: 15.2 Case Height: 22.8