3d printers accessories-- easy to use: precise design and flexible slot cover make it easy to install. T slot cover-- size300x1. 5x1. 5cm 118. 11x0. 59x0. 59inchAluminum extrusion t slot-- fine workmanship: made of material for lasting use. 3d printere-- - after- serviceif you have please as soon as possible. we will for you immediately. Flat seal for 3d printer-- easy to use- 2020 panel holder is easy to use and install replace old or damaged with new ones.