SmallRig Double Ball Head Magic Arm (with 1/4" screws on both ends). Model number is 2070B. Please check the manufacturer's website for detailed specifications. It has only been used indoors and is in very good condition. Please refer to the images for product confirmation, and feel free to ask any questions in the comments section. I haven't found the time or opportunity to use it, so I'm selling it for 4,000 yen (including shipping)! I'm offering it at a low price, so please consider this opportunity.