Various size: you will 32 pieces dowel pins set (16 pieces for solid and hollow ones respectively) in different size, including 1/4 inch (6 mm), 5/16 inch (8 mm), 3/8 inch (10 mm), 1/2 inch (12 mm), which can easily meet your different needs. Quality material: dowel centers are made of quality metal material and plated by chrome treatment to hardness, which are durable, not easy to wear, rust and corrode, allowing you to use for a long time. Common function: the pin is designed for positioning the drill holes and connecting 2 wood blocks, which provides alignment and is an important woodworking tool. How to use: you should drill holes on a piece of wood with a drill bit, accurately the hole locations on another piece of wood and connect 2 wood blocks with dowel centers. Wide applications: the dowel pins set is widely applied in integrated cupboard, closet and other wooden furniture that needs to be assembled indoors. Colour: silver Material: metal Package Contents: 16 * Solid dowel centers 16 * Hollow dowel centers Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.