I am getting rid of this item because I no longer use it due to changes in my shooting environment. It shows signs of use, but it works well and I think it still has plenty of life left. Please check the photos and consider purchasing. Size: 15 x 27 x 27mm Weight: 15g Compatible Accessories: Cold shoe (hot shoe), 1/4 inch screw Mounting Screw: 1/4 inch screw Spider Crab Cold Shoe Adapter for Magic Arm The MA-CSA is a cold shoe accessory mount compatible with the Spider Crab Magic Arm. It has a 1/4 inch female screw mount, so it can be used with accessories with a 1/4 inch male screw. It can be attached to cold shoe compatible accessories and camera hot shoe parts. The top of the cold shoe has a 1/4 inch female screw.