The linkstar qsob-11 foldable octabox has a diameter of 110 cm and is easy to set up. the qsob-11 is suitable for portrait and product photography and is supplied with 2 diffuse cloths. the diffuse material spreads the light evenly, provides a neutral colour temperature and minimizes shadows and reflections. Linkstar qsob-11 foldable octabox specifications The qsob-11 is equipped with a standard exchangeable linkstar s-bayonet connection, which is compatible with all linkstar mt series studio flash units. further, the qsob-8 is also compatible with bowens, studioking, lastolite, jinbei, qihe, and aurora studio flash units equipped with an s-bayonet connection. By using an additional speed ring adapter, the qsob-8 is also compatible with falcon eyes, broncolor, elichrom, hensel and multiblitz studio flash units. to view these speed ring adapter rings, please see the optional accessories tab below. These softboxes are not suitable for halogen lamps, (such as the linkstar lq-1000), due to the high heat generation of these lamps. the soft boxes from the linkstar lqa series are suitable for such types of lamps.