【High Efficiency】Bold device connection firmware is safe and fast to use, saving labor. 【Widely Uses】The jewelry rolling machine is suitable for processing rings, bracelets, earrings, etc. Bracelet bending machine design is thoughtful and reasonable, strong and versatile bending, time saving, labor-saving, long-term use. 【Humanized Design】Thicken and extended spring handle design, easy to use and effective