Brand new, unused Color: Light Blue Material: Plastic This item features a two-axis, double-spindle design, significantly improving stability compared to conventional single-spindle types. It's a convenient item that allows you to set two yarns simultaneously when knitting or crocheting, increasing work efficiency. This is an original product, entirely self-designed and carefully crafted one by one using a 3D printer. Unlike typical 3D printed items, it incorporates bearings, providing stability and smooth operation without any wobbling. Due to 3D printing, there may be slight individual variations, and perfect perfection is difficult to achieve. Please understand this beforehand. Easy to assemble! Simply attach it following the steps in the photos. You can adjust the sensitivity of the rotation with the screw on the upper part of the inner axis. If the rotation is too fast, adjust it by turning the screw counterclockwise. We will carefully package the product to prevent damage during shipping. Thank you for viewing.