Magnetic Positioning Quilting Light for Sewing Machine, 3-in-1 Sewing Light Guide with Straight Stitching, Crosshairs & Dot Illumination Heads, Adjustable Red Light Guide for Precision Sewing

["Instruction: Suitable for metal sewing machines: 1. Attach the magnet behind to the suitable position on the sewing machine body; 2. Turn on the switch; 3. Rotate the light head to adjust the thickness of the light. Suitable for plastic sewing machines: 1. Use circular double-sided tape to attach the magnet part and fix it in a suitable position on the sewing machine body; Then fix the wire with masking tape; 2. Turn on the switch; 3. Rotate the light head to adjust the thickness of the light."]