HIGHTEX-CM-FL009 Heavy Duty Mattress Flanging Machine is specialized over lock sewing machine (Flanger) for thick quilted fabrics. Features: Powerful top belt feeding and high needle bar for extra stroke for your thick quilted materials; Twin Needle Bar design for the extra high needle bar stroke up to needle plate 13.5 mm; Extra High Upper Looper stroke up to needle plate of 11 mm; Powerful Upper Belt Feeding of 13 mm of width; Pneumatic Presser Foot Lift; Extra Wide Upper & Lower Knives; Ability of 80 mm (approx. 3") thickness mattress.