Cutex Sewing Bobbin Case for Consew 205rb 206rb Walking Foot Machines #18045 Brand New High Quality M-Size Bobbin Case for Industrial Sewing Machines. This Bobbin Case #18045 is a Large Capacity No-Back-Lash (NBL) bobbin case that fits many industrial sewing machines. No-Back-Lash bobbin cases are designed with a brake spring which puts constant, light pressure on bobbins to overcome momentum. Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start. This high quality bobbin case will fit : Consew : 205RB, 206RB Also fits following industrial sewing machines. Gammill : Quilting Machines Juki : DNU-241, DNU-1541, DU-141 Mitsubishi : DY-339 Nakajima : 280L Seiko : STH-8BLD-3 Tacsew : T111-155