Check the listing for details. T Type / V Type 2040 Aluminum Extrusion Profile Anodized Linear Rail Guide. Condition: New. Listed at 17.99 USD. -High-strength T slot 2040 extrusion profile made of 6063 aluminum -Features the latest anodized technology for excellent corrosion resistance, wear resistance, oxidation resistance and longer service life, making them ideal for building a 3D printer -High cutting accuracy good flatness without burrs, making your 3D printer equipment more stable -They are widely used in 3D printers, DIY laser cutting machines, CNC equipment and linear motion guides -European standard: 2PCS T slot 2040 aluminum extrusion, Length 400mm(15.75'')*40mm(1.6'') Width*20mm(0.8'') Height.-European standard: 2PCS T slot 2040 aluminum extrusion, Length 500mm(19.7'')*40mm(1.6'') Width*20mm(0.8'') Height.-European standard: 2PCS T slot 2040 aluminum extrusion, Length 600mm(23.6'')*40mm(1.6'') Width*20mm(0.8'') Height.-European standard: 2PCS T slot 2040 aluminum extrusion, Length 700mm(27.6'')*40mm(1.6'') Width*20mm(0.8'') Height.-European standard: 2PCS T slot 2040 aluminum extrusion, Length 2000mm(78.74'')*40mm(1.6'') Width*20mm(0.8'') Height.-European standard: 5PCS T slot 2040 aluminum extrusion, Length 1000mm(39.4'')*40mm(1.6'') Width*20mm(0.8'') Height.-European standard: 5PCS T slot 2040 aluminum extrusion, Length 1220mm(48'')*40mm(1.6'') Width*20mm(0.8'') Height.