The size of this elliptical extrusion is 120*40mm, the length of it is 6m and it can be cut into the length you need, its material is aluminum alloy. This aluminum post has four system grooves and the width of the groove is 4.3mm, one tension lock can be put into the extrusion to realize its connection with other 4.3mm groove system profiles. By adopting the German standard, the quality of Lingtong’s products is well accepted by European and American markets. Up to now, LT products have already been sold to more than 103 countries all over the world.