ITEM NAME:Upgrade Aluminum Linear Rail Guide Slider Block For Any Cubic Photon DLP SLA Description: Metal is used to improve the print quality of your Any cubic Photon when combined with good quality linear rails . Precision machined from a solid billet of 6061 aluminum , and then anodized Each one was tested against our printer to make sure it still had a good snug fit. For Any cubic Photon 3D Printer Upgrade Part Package Includes: 1x Linear Rail Guide Block SKU: ALU0004024868029770.For Any cubic Photon 3D Printer Upgrade Part. 1x Linear Rail Guide Block. Precision machined from a solid billet of 6061 aluminum, and then anodized. Each one was tested against our printer to make sure it still had a good snug fit.