Specification Model: SM-2972 Material: Cast Iron Surface Treatment: Plastic Spraying Single Needle: DP17 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: 552143.5cm/ 21.658.2717.13inch Packing Size: 582949cm/ 22.8311.4219.29inch. This sewing machine supports certain sizes of nylon, cotton, and silk threads, which makes up for the defect that ordinary shoe mending machines can only use nylon threads, making it more widely available. The high-quality material as well as the manufacturing process make it durable. It has a compact structure and a small footprint, making it very suitable for daily use at home! Premium Material: It is made of high-quality cast iron with good toughness and hardness, and the shell is treated with plastic spraying to enhance its corrosion resistance and prolong its service life. 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. Convenient Operation: The ergonomically designed handwheel can be installed at the front and back, and its small handle provides you with a more convenient and effort-saving sewing operation. 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. Protective Package: To prevent the product from being damaged and bumped during transportation, we packed it with foam, plastic bags, and cartons to protect your products to the maximum extent possible. Customer Service: Communication is the best way to solve problems. We will reply and solve the problem for you as soon as possible. Long Arm: The 11.81-inch long arm is designed to provide you with a wide space to use for smoother sewing work. Needle Clamp: It can help fix the needle, and ensure a smoother and more stable sewing process. Stable Base: The four supporting feet at the bottom can firmly fix the machine and improve its stability when used. 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. Install the prepared coil onto the head first. 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. Place the product to be mended on the front of the sewing machine. Shake the handwheel to start the needle by mechanical transmission. Surface Treatment: Plastic Spraying. Single Needle: DP17 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). 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: 552143.5cm/ 21.658.2717.13inch. Packing Size: 582949cm/ 22.8311.4219.29inch. Other Accessories for Installation. Please note that this product only includes the sewing machine. Other accessories such as a motor, table plate frame, etc. Please take care to avoid turning the handwheel upside down when using it to prevent the shuttle from knocking inside. Please note that the machine needs to be manually lubricated before each use. Please note that there is a groove on the needle, which must face right, otherwise, the thread will break. Please do not try to feed the sewing material by hand as this may affect or even damage the needle. The machine feeds easily without assistance. Please allow the slight color difference caused by the shooting light and the 1-3cm error due to manual measurement, and make sure you do not mind before ordering. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it's non-workdays, please kindly be patient and wait till Monday.