2 pairs of precision baseboard alignment dowels PLUS a pilot drill and a 13mm and 19mm spade bit needed for their installation. These are the BEST alignment dowels ever offered. Easier to install accurately than any other… Hard alloy, heavily passivated for zero corrosion means very long life, and the tolerances are so fine there is NO movement possible once they are installed. 2 pairs is enough to make one joints (Joins two baseboards together).