Coghlan's Four Function Whistle

Whistle includes liquid filled compass, thermometer and magnifier. Key clip to attach to a backpack. Import.Wt. 1.6 oz 45.3 gSize: 3" x 3/4" (7.6 cm x 2 cm)Plasticincludes liquid filled compass, thermometer and magnifier.Key clip to attach to a backpack.