100% brand new and high qualityMachined with external marking points, used compatible with accurately aligning stock compatible with proper dowel or tenon placementDowel centers made of steel so you can use this compatible with hard wood as well as soft woodSolid dowel centers and hollow ones and you can choose the ones you needJust drill one set of holes, slip in the dowel centers and press the joint togetherUse steps: 1. After the wood tenon is connected with the wood block, the round wood tenon tip is covered with the wood tenon2. Align the tip of the head with another wood block to be tenoned3. In this way, there is a mark of round head on the other wood block4. Use a drill to drill the mark round head, and then two pieces of wood are perfectly combined without dislocation and tenoncolour: silverMaterial: metalSize: 8PCS solid: 6mm, 8mm, 10mm, 12mm (Approx.), 2pcs compatible with each size8PCS hollow: 6mm, 8mm, 10mm, 12mm (Approx.), 2pcs compatible with each sizePackage Contents: 8*solid dowels (2 compatible with each 6-12mm)8*hollow dowel (2 compatible with each 6-12mm)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.