100 Aluminum Bobbins For Long Arm Quilting Machine (Viking Mega Quilter 18, Pfaff Grand Quilter 18 Machines & more) Pack of 100 Large Capacity M Size Aluminum Bobbins for Long-Arm Quilting Machines Bobbin Measurement : 1" wide X 3/8" tall Aluminum bobbins with bobbin winder slot These high quality aluminum bobbins will fit following long-arm quilting machines : Baby Lock Jewel 18" Juki TL-2200QVP Quilt Virtuoso Pro Longarm Quilter Gammill Quilters Handiquilter HQ Sixteen Nolting's : Quilter Master Pfaff Grand Quilter 18" Queen Quilter 18" Tin Lizzie 18 Regular models and 18 LS models Tin Lizzie Ansley29 Quilting Machine Viking Mega Quilter 18" Machines & Frames And many more.