Description Structure Base – Square Tube Cap Have your square tubes stood the test of time, but the fine finish of the cap has worn down? Look no further! Simply replace it with a brand new Structure Base cap and bring that elegant finish back to life. Our caps are precision-crafted to fit 40×20 mm square tubes, ensuring a secure and seamless fit. Made with high-quality materials, they not only protect your tubes but also elevate the overall aesthetics of your setup. Precision-crafted Square Tube Cap, measuring 40×20 mm
