Roller Smith Attachment for Power Rack Please read to the end. You can add a Smith machine to your power rack. This is a used item, so there may be minor scratches and signs of use. Please refrain from purchasing if you are concerned. The barbell is not included. Everything that was originally included is present. There are no instructions. I purchased it for 33,000 yen. I haven't used it for a year, and I'm selling it because I bought a new rack. The roller parts have some scratches due to rubbing. Otherwise, it seems to be in good condition. The hex keys needed for assembly are also included. There is also an assembly video on the STYLE website. I will try to ship it without disassembling it as much as possible. The following is quoted: ・This roller smith attachment was developed for power racks and half racks of all manufacturers. ・It holds the support columns with four rollers, allowing for smooth up and down sliding. ・Power racks and half racks that can be installed are those with square columns that have multiple holes running from front to back from top to bottom. [Compatible Column Sizes] ・50mm x 50mm / 2inch x 2inch ・60mm x 60mm / 2.4inch x 2.4inch ・75mm x 75mm / 3inch x 3inch [Size] ・Weight: 4.5kg/one side, 9kg/both sides ※Power rack and barbell shaft are not included. Roller Smith Attachment for Power Rack (This product is an original product of Style Fitness.) [Precautions for Use] ※Before use, check that each part is not loose and secure it firmly. Also, always install and remove the attachment in a safe place.