NEEWER&reg; AD-S15 Flash Lamp Tube Bulb Protector Cover for WITSTRO AD-180 AD-360 The cover is especially used for WITSTRO Advanced Flash AD180/AD360 Easy to install on the flash light and protect it from direct and accidental collision Convenient for light carrying and transportation Size: Diameter 3.8cm; Height: 8cm Material: Metal. Compatible for AD-180 / AD-360 Speedlite