3.63'' overall. Clip. Water resistant. Impact resistant. Modes: High (100 lumens, 1h 45m runtime); Low (43 lumens, 4h 15m runtime). 35m beam distance. Bulls-eye spot beam. Quick-Cycle spot beam. Requires (1) AAA battery (included). Aluminum construction. Color: Black. Clam packed. May not ship to Australia. May not ship Post Office.