[With Metal Wire Stand] Our electric bobbin winder comes with an extra metal wire stand to accommodate a wider range of wire types and sizes. Whether it's a small personal project or a large professional task, this feature ensures flexibility to use various spools of wire without the need for additional tools. [Safe and Durable] Our electric bobbin winder is made of high-quality ABS and alloy materials, providing a sturdy and durable build for safer operation. Product power: 7.2W. [Compact and Portable] The electric bobbin winder measures 13.8 x 10.6 x 7.8 cm, featuring a minimalist suitcase-style design with a snap-on lid that opens with a single press. The top handle pulls out for easy carrying. When not in use, the lid closes securely for convenient storage and dust protection. [Save Time] This sewing bobbin winder quickly and easily fills the bobbin and stops automatically, effectively saving time on sewing and crafting projects. [Battery/USB Powered] The electric bobbin winder can be powered via USB charging or 2 x AA batteries (USB cable and batteries not included). Easy to Use: Eliminates the need to unravel thread from your sewing machine to wind the bobbin. The electric bobbin winder fills the bobbin effortlessly and stops automatically when full. Compact and Portable Design: Designed in a simple suitcase style with a pull-out top handle for easy portability. Product Name: Automatic Bobbin Winder Product Power: 7.2W Power Supply: 5VDC or 2 x AA batteries (both not included) Color: White Material: Plastic Size: 13.8 cm long, 10.6 cm wide, 7.8 cm high Package Contents: 1 x Bobbin Winder Note: Light reflection and different display settings may cause slight color variations between the item and the image. Measurement allows an error of +/- 1-3 cm.