Features:* 16 pcs. Dowel and spigot center point Pin wood 6mm/8mm/10mm/13mm center set* Machined with external marking points, used to accurately align the stock for proper placement of studs or tenons* Anchor pins made of steel so you can use it on hardwood and softwood* Solid stud centers and hollow and you can choose those, you need* Just drill one set of holes, insert the dowel centers and press the joint together* Points on the dowel centers accurately mark the locations of the holes on the other pieceSpecifications:* Material: A3 steel* Surface finish: chrome plating* Type: solid, hollow* Size: 6mm, 8mm, 10mm, 13mm(Approx.). Package Contents: 16pcs/set pin centersNote: The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.