This is a SmallRig 15mm Rod Support System Baseplate Set. The model numbers are 2092B, 1051, 1617, and AAK2213C. Please refer to the manufacturer's website for detailed specifications. It has only been used indoors and is in very good condition. There are no missing parts, and there are no issues with its use. The set includes: 1 x 15mm Rod Support System Baseplate (2092B), 2 x Aluminum Alloy Rods (15mm) (1051), 1 x Rod Cap (1617), and 4 x Multifunctional Folding Tool Kits (AAK2213C). 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 12,000 yen (including shipping)! I'm offering it at a low price, so please consider this opportunity.