A simple yet reliable solution to mount your iMac. This precision-machined aluminum adapter is specially designed for easy mounting of your iMac desktop computer (Compatible with 21" and 27" iMac models) on a light stand top which comes with a 5/8" (16m) baby stud. The triangular plates are made with 4mm thick high-grade aluminum which can be securely attached to the iMac's cable pass-through hole with M6 bolts x 3 pcs (included). A 1/4-20 female threaded and 3/8-16 female threaded are drilled on the top 5/8" (16mm) baby receiver adapter for attaching any lighting, video or photo accessories. Comes with 1/4-20 or 3/8-16 male threaded.