Here is a Deltron crossed roller slide, p/n NBT3105SSA. Travel is 2 inches total, or 1 inch each way from center. App 4-1/8" long by 2-5/16" wide by 1-1/16" tall / thick. Has 2 counterbore holes on each end of base, big enough for 8-32 cap head screws. This is used. No vendor packaging or mounting hardware. A few minor blemishes from previous use. Free shipping via USPS or UPS Ground, depending on zip. Check out my other listings. If you have any questions, let me know please. Thanks.