Lightbridge C-Diff 50 Kit 4Panels Speedbag in heavy duty Cordura + Neoprene Sleeves The C-Diff 50×50 comes with a heavy duty Speedbag! Hang the Speedbag on your stand like a scrim bag for fast exchanges and keeping the C-Reflectors safe. 50 x 50 cm 4 x Cine Reflectors in heavy duty Speedbag + Neoprene Sleeves