Colour: Black Material: Aluminumsize:Shorten the length of 13.6cm/5.35"，Stretched 15.5cm/6.10"，Head diameter 3.3cm/1.29"，Last 2.7cm/1.06"， the handle can be elongated.Features: Tail button switch， third gear， the use of US imports CREE MXL-T6 bulbs，Battery: 3 * AAA batteries， maximum 560 lumens (without batteries)Purpose: Trekking lighting， camping lighting， lighting the night ride， explore lighting， lighting caving， photography fill light， police light， gemology， home， etc.Packing: 1pc