... door bottom to prevent pests, noise, airflow, light from your room. Quick fitting on, good material Save your money PVC holder door ... ):8---25mm,standard length:19mm&25mm3)height of the pvc holder:12mm,10mm4)filaments:black PP,0.2mm5)fitting way:holes ... with screws6)PVC holder color:Golden anolized;White,black,silver,brown,grey and etc ...