A waterproof matchbox, liquid filled dial compass, fire starter flint and a shrill signal whistle in one. Comes with a nylon lanyard.Specifications:- Size: 4 1/2" long- Diameter: 1"manufacturer no: 8634bar code: 056389086340manufacturer : Coghlansshipping dimensions: weight: 0.1 dimensional weight: 4.5 (w) x1 (h) x8 (d)