1.Size and weight: 2.5 x 2.5 x 1.49 inches, 1.76 ounces 2.Simple structure: In the aluminum alloy structure, there are 3 economical sole brackets connected by hot shoe brackets or 1/4"-20 brackets 3.Multi-purpose: can be used for any multi-purpose shooting, speech, fill light, microphone, flash, camera top expansion accessories, etc.