The Interfit Photographic Modi-Lite Uni-Mount is able to fit a wide range of manufacturers' Speedlites from Nikon, Sony, Canon, Metz, Nissin and many more. With a unique locking mechanism, it offers a strong and fast process for fitting the Modi-Lite system to your flashgun. Simply twist the thumb screws to lock on to your flashguns without the need for additional fixing tabs, rubber bands or Velcro. It can take a flashgun up to 58 x 78 mm maximum external sizes. The minimum grip size is 30 x 78 mm.