Specifications: multi head computerized quilting machine Upper thread breakage detection system: when the thread breaks, machine would stop multi head computerized quilting machine: Features: Unique design of upper creel makes it very easy to exchange upper thread. Unique design of straight-line distance (min.1/4"), makes every line distance more precise. Unique adjustable (0~30mm) automatic feeding system of the roll, which can adjust ideally materials of different thickness and allow perfect sewing without skipped stitches on very thick (or very thin) materials and exotic "puff" effects without destroying materials. Unique design of shuttle holder makes every stitch more precise and reliable. Unique automatic damp system of tension on passive feeding (adjustable), which ensures perfectly the material feeding more equal and reliable and operation more convenient. Unique "dot" presser system allows the reduction of resistance on presser-plate when quilting very thick materials and makes every stitch trace clear and compact with distinct third dimension without loose thread. Newest overall design has not only beautiful appearance but also perfect safeguard. It makes the operation more safe and reliable. Multi-head Computerized Quilting Machine