closure usable for dispensing tear off lengths of rolled sheet materials , including plastic trash can liners . a ` roll top ` door is included which incorporates in it a roller mechanism . the lower supporting body of the apparatus also has provided a roller mechanism . when the roll top door is closed , the roller on the door is brought into contact with the roller on the apparatus . when used , the door on the apparatus is opened and a store of sheet material to be dispensed is placed within the apparatus . an amount of sheet material to be dispensed is played out over the lower roller . when the door of the device is closed , the top roller is brought into contact with the upper surface of the sheet material to be dispensed . the friction between the upper and lower roller provides tension on the sheet material when sheet material is pulled from the apparatus .