Please Verify Your Model Number BEFORE Ordering. ONLY fits models listed. Does not fit new models, only old models. Fits models: MMA, MMB, MM100, MM200, 1-7A, 1-8A,1-8AT, 1-8B, 1-9AU Fits models: 10, 10A, 11, 11C, 12, 12C, 701-10D, 701-10D Fits models: 701-100, 701-9C, 701-91, 701-92, 701-93 Fits vintage models, not new models length is 7"