Jeans needles, as the name suggests, are particularly intended for stitching denim, a very thick and densely woven material, and consequently very difficult for the needle to pierce. They are also used to stitch other extra thick and/or dense fabrics. The sharp, semi-ball, point and reinforced blade reduce needle deflection and breakage, and skipped stitches. The smaller sizes are also ideal for quilting. Pack of 5
And here's the tedious (but important) bit: They will fit all Singer domestic machines made since 1890 and almost all domestic machines made in the last 60 years including, Brother, Jones, Janome, New Home, Toyota, Bernina, Juki, Frister + Rossmann, Elna, Pfaff, Husqvarna (Viking), Jaguar, Novum, Britania, etc.
If you are not sure please ask and we will be happy to advise you.