The secret is in the patented two-piece magnetic hoop design
Memory Craft 350E
Simplicity SL2507 Sewing Machine Instruction Manual (Model Simplicity SL2507) - 35 Pages
X75524-001
Amelia BL100A
Molded Non-Stick Zipper Foot, Singer #MT3 MAPENFORCED The secret is in theNon Stick Feet are great for working with leather, laminated foam, rubber, and plastic fabrics. This foot is designed to eliminate drag and pucker while not damaging fabric. For Single Needle Drop Feed Lockstitch Guaranteed to fit Singer Sewing Machine Models: 191D, 195K, 241Class, 245Class, 251Class, 281Class, 31Class, 331K, 366K, 400W, 44Class, 451K, 491, 600W, 660A, 771, 95, 96 Guaranteed to fit Union Special Sewing Machine Models: 61200, 61300,