B008CBDMW2 Fotodiox Pro 12×56 Strip Softbox Plus Grid (Eggcrate) for Studio Strobe/Flash with Soft Diffuser and Dedicated Speedring Insert, for Broncolor (Pulso) Strobe Flash Light, Soft Box, Speed Ring

Make sure this fitsby entering your model number.
Pro Grade, Heat Resistant Premium Grade Materials w/ Heavy Duty Construction
Features Inner Baffle and Outer Diffusive Cover for Even Light Throw
Sealable Venting for use with Continuous Lighting, Rotating Speeding with Thumb Screw Lock
Lightweight eggcrate design grid, 50 degree angle, produce controled light source
Each grid is 2″x2″ and 1.5″ deep, Each size adjustable by collapsing cells