Pull Chain Extension: 10 feet/3 meters long silver metal bead chain with 10 matching connectors; Good for replacement molding handle or extension pull chain Dead Diameter of Roller Blind Pull Chain: 4.5mm/0.18inch (Note: Please allow slight dimension deviation due to manual measurement); With 10 matching connectors attached, which is convenient Applicable Scene: Main suit for ceiling fan chain, high ceiling light fixtures, on the ceiling for ventilation, as a curtain pull chain, bottle cap hanger chains and many other places Note: 4.5mm diameter bead chain is suitable for replacing the bead chain of roller blinds and shutters; 3.2mm diameter bead chain is not suitable for replacing the bead chain of roller blinds and shutters; Please make sure the replacement diameter of the ball size of the pull chain when purchasing Adjustable length: cut the required length of the pull chain to install in the places, which is convenient for your daily life