Check the listing for details. Linear Guide Rail ~ Approx 10.5 Inches / 27cm / 270mm ~ Possibly THK. Condition: Used. Listed at 59.98 USD. Listed here is a Linear Guide Rail ~ Approx 10.5 Inches / 27cm / 270mm ~ Possibly THK. This rail came from some old obsolete lab equipment. Brand name not present on the piece, but other rails from the same machine were labelled as THK branded rails. Not sure why branding is absent from this one but it is assumed to be made by the same company. I wasn't sure how to keep the block from sliding off and losing all the bearings so I taped it together and put a piece of metal on the rail to keep the block secured. Should still be in perfect working order aside from the poor presentation. Length measured to the best of my ability. No idea if any screws that you need for this rail are missing. I assume missing screws are easy to replace. You get the exact unit(s) seen in the pictures. RETURNS: Returns are accepted. SHIPPING: Shipping accepted to The Lower 48 U.S. States. NO shipping to APO Boxes, Hawaii or Alaska. The ONLY international shipping option accepted is Ebay International Shipping. No other international shipping is accepted, period. If for some reason an order is placed that does not meet these criteria, the order will be cancelled - no exception. I do my best to ship as soon as possible upon payment. I do my best to send items out within 3 business days - shipments tend to go out faster than that if I'm handing multiple orders within 24 hours. If the shipping and handling time on this listing is mentioned to be exceeding 3 business days, it can be assumed that I am currently away and that the S&H time will return to 3 days once I am back.