How to Use 1. Install the prepared coil onto the head first. 2. Pull out the thread from the coil, thread and wind it correctly according to the instructions or the original winding sequence on the sewing machine. 3. Place the product to be mended on the front of the sewing machine. 4. Shake the handwheel to start the needle by mechanical transmission. Specification Model: SM-2972 Material: Cast Iron Surface Treatment: Plastic Spraying Single Needle: DP*17 16# Lubricating Oil: 10# White Oil Stitch Method: Straight Line Needle Plate Type: Double-headed Operation Mode: Manual; Electric(Require Table Plate Frame and Motor, Not Included) Max. Sewing Speed: 500 stitches/min Sewing Table Diameter: ? 30mm/ 1.81in Stitch Length: 5-15 stitches/inch (5.1mm - 1.7mm) Sewing Foot Stroke: 6.4-9.5mm Arm Length: 30cm/ 11.81inch Net Weight: 28kg/ 61.73 lbs Gross Weight: 29.55kg/ 65.15 lbs Product Size: 55*21*43.5cm/ 21.65*8.27*17.13inch Packing Size: 58*29*49cm/ 22.83*11.42*19.29inch Application This product is suitable for sewing or repairing thick materials (leather, rubber, plastic, nylon thread, polyester, cotton, and canvas), such as shoes, boots, slippers, bags, dolls, cylindrical objects, raincoats, leather bags, trousers, and canvas tent. Package Included 1* Sewing Machine 1* English Manual Other Accessories for Installation Notes 1. Please note that this product only includes the sewing machine. Other accessories such as a motor, table plate frame, etc. required for an electric drive need to be purchased separately. 2. Please take care to avoid turning the handwheel upside down when using it to prevent the shuttle from knocking inside. 3. Please note that the machine needs to be manually lubricated before each use. 4. Please note that there is a groove on the needle, which must face right, otherwise, the thread will break. Efficient Sewing: With a maximum sewing speed of 500stitches/min, it works with sharp needles to speed up your work and save you time. Flexible Adjustment: It has an adjustable stitch length between 5-15 stitches per inch(5.1mm - 1.7mm), so you can adjust the needle pitch according to different fabrics to meet your different sewing needs. Moreover, you can also adjust the tightness of the thread by adjusting the thread clamp nut to better match your sewing tasks. Omnidirectional Sewing: The design of the upward feeding mechanism that can rotate in all directions can change the feeding direction without adjusting the fabric, improving sewing efficiency and product quality. Manual Sewing: The easy manual operation and the two-speed pulley design allow you to have a good grasp of the strength and precision of the machine's operation, which can be paused and driven at any time according to your needs. Great Applicability: Both ends of the needle plate have two different sizes of needle holes, you can choose the right needle holes for different needles, which can be adapted to more sewing needs.