Tinksky Roller Foot Presser Foot Snap-On High Shank Leather Sewing Accessories for Singer Juki Industrial Sewing Machine Material: Stainless steel. Size:3.2*3*1.3cm. For industrial sewing machine series. Sewing any material are smooth when sewing. Reduce the use of crease resistant type and drag the needs of the assist device. The roller type presser foot is more durable than teflon or plastic presser foot. At the bottom of the roller foot is free ball bearing slide.