The Singer Heavy Duty 4423 is a robust, high-speed mechanical sewing machine (up to 1,100 stitches/min) designed for heavy fabrics like denim and canvas, featuring a sturdy metal frame. It offers 23 built-in stitches (97 applications), a 1-step buttonhole, and an automatic needle threader. This durable machine is suitable for both beginners and experienced sewers. Carrefour UAE Carrefour UAE +4 Key Features and Specifications: Performance: 60% stronger motor than standard machines for high-speed stitching and heavy materials. Stitches: 23 built-in stitches, including essential, stretch, and decorative, along with 97 distinct stitch applications. Durability: Heavy-duty interior metal frame and stainless steel bedplate for stability. Convenience: Automatic needle threader, top drop-in bobbin, and 1-step buttonhole function. Speed: Maximum sewing speed of 1,100 stitches per minute. Accessories: Includes a variety of presser feet (all-purpose, zipper, buttonhole, button sewing), edge/quilting guide, and more. Dimensions & Weight: Approximately 14.6 lbs; 15.5 x 6.25 x 12 inches.