Product description features: Multifunctional professional bending tool machine bending machine, simple to operate, convenient for bending, saving time and effort. An indispensable assistant for jewelry designers, it enables efficient bending with less effort. Molds and post-processing are made from solid steel, hardened and durable. Column: 45 degrees and 90 degrees. Color: Black Material: Plastic Size: Round: 12mm, 14mm, 16mm, 20mm and 22mm Package Contents: 1 x Ring Bending Tool Set only contains the above package contents and does not include other products. Note: Lighting shooting and different monitors may cause the color of the items in the pictures to be slightly different from the actual item. The measurement allowance is +/-1-3cm.