Product Description The 24" (61cm) Strobies Pro-Flash Silver/Black Umbrella is used to bounce light onto your subject. Silver umbrellas provide slight softening of skin tones with increased contrast and sharper edges than white umbrellas. The black backing limits the amount of stray light polluting your scene. The highly reflective silver surface limits the light loss to less than 1 stop. All Pro-Flash umbrellas feature a double-folding design and telescopic shaft for compact storage and transportation. The umbrella fabric is made from high quality nylon while the umbrella frame and shaft are made from light weight, high quality aluminum. The Strobies Pro-Flash Reflector & Holder for Umbrella (not included) is required to mount umbrellas to the Pro-Flash unit. Product Specifications Umbrella Diameter = 39" (100cm) Shaft Diameter = 8mm Shaft Length - Extended = 25.5" (64.8cm) Shaft Length - Folded = 15.3" (38.8cm) Light Loss = 1 Stop Shaft and Frame Material = Metal Umbrella Material = Nylon The Strobies Pro-Flash Silver/Black Umbrella includes: 1 - 39" (100cm) Strobies Pro-Flash Silver/Black Umbrella