
The Singer Heavy Duty 4423 in Meltwater Blue is a high-speed, durable sewing machine designed for sewists who work with various fabrics, including heavy-duty materials like denim . Key features include a robust metal frame for stability, enhanced motor power for piercing thick fabrics, 97 stitch applications for versatility, a built-in needle threader, and a top drop-in bobbin system. The "Meltwater Blue" is a modern, refreshed color option for the popular Heavy Duty 4423 model.