Comprehensive feeding, large rotary shuttle, large needle spacing; Suitable for sewing medium and thick materials such as leather, synthetic leather, and synthetic materials. For example, car interiors, furniture sofas, tents, etc. Needle spacing specifications: 3.2/4.8/5.6/6.4/7.9/11.1/12.7/14.3/15.9/22.2/25.4/31.8/38.1