This 50 pcs universal heavy duty sewing machine needle set comes in 5 bottles, with 10 needles per size, including 65/9, 75/11, 90/14, 100/16, and 110/18, suitable for all sewing machines including Brother, Singer, and Kenmore. Heavy duty needles handle thick and tough fabrics such as denim, corduroy, leather, and canvas for DIY, home sewing, and professional projects. Assorted sizes allow precise sewing on medium to heavyweight materials, including medium weight denim, heavyweight cotton, and medium weight leather. Needles are stored in a slim, convenient case with clear lids marked with sizes for easy organization and quick access. This 50 pcs universal heavy duty sewing machine needle set comes in 5 bottles with 10 needles per size, including 65/9, 75/11, 90/14, 100/16, and 110/18, compatible with Brother, Singer, Kenmore, and most sewing machines. Designed for thick and durable fabrics such as denim, corduroy, leather, and canvas, these needles are ideal for DIY, home sewing, and professional projects. Assorted sizes ensure accurate stitching on medium to heavyweight materials, and the slim case with clear lids keeps needles organized for quick access.