Babylock Vibration Absorbing Proof Mat for Serger Overlock Machine This mat is for Serger Mavhine of "Sound proofing" and "Vibration proof" of mat. Size: Width 330mm(=12.99 in) x Depth 320mm(=12.6 in) (When it's Seger which fits into this size, it can be used.) Genuine products of "Babylock Inc."