FOUR SIZES: Four sizes (6mm, 8mm, 10mm, 12mm) are available, 4 for each size, 16 in total, always meet your needs. PREMIUM MATERIAL: L The dowel marker tip set is made of stainless steel, which is durable, resistant to abrasion and deformation. They are suitable for hard or soft woods. PRECISE POSITIONING: These dowel marker tips have a sharp point in the center that allows you to precisely align the holes in both boards to properly install the dowels in wood. Easy to use, just drill a few holes, insert the tip of the dowel marker and press another piece of wood over the joint. The anchor point marks the exact position of the hole on the other side. WIDE APPLICATION: The P dowel marker tip set is used to install cabinet, cupboard, table, a bed, a shelf, etc. It is also suitable for DIY wooden crafts.