WIRE WRAPPING TOOL SET: 4 different shapes of mandrel and multiple sizes to make earrings and wire frames of different shapes. The plastic handle can be attached to either winder. SIZE: Round mandrel: 4.64Inch(11.8cm), 6-27mm, Square mandrel: 4.64Inch(11.6), 6-25mm, Triangle mandrel: 4.64Inch(11.8cm), 5-31mm, Oval mandrel: 4.57Inch (11.6cm) 10.5-29mm. Handle 3.07Inch (7.8cm) MATERIAL: Our mandrel are made of sturdy plastic, it 't corrode, lasts longer, is lighter, and is easy to use. USE: You can use our ring mandrel to create your own jump rings, pendants, earrings and other wire jewelry. This wire wrapping tool is not only for beginners, but also for jewelry makers and craft lovers. This jewelry making tools are made of plastic, so it has the characteristics of light weight and long service life. After your wrapping metal jewelry takes shape, it needs to be hardened or secured, otherwise there is a chance that it come loose. Colour:As Shown Material:Plastic Package Contents: 1 * Metal Winding tool set Only the above package content, other products are not included. Note: Light reflection 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.