The combination with, a mandrel assembly comprising first and second telescoping tubes which are biased outwardly from each other by a spring mechanism located between them, and the mandrel assembly being releasably mounted in a holder for holding a roll of material, the holder including a base and spaced apart, outwardly extending first and second legs, each having a selected width, the mandrel assembly being releasably mounted between the legs, a removable plate structure including a plate having an outer surface and an inner surface and having structure for removable mounting the plate onto one end of the mandrel assembly and the plate having an areal extent which extends beyond the width of the adjacent leg, whereby a user can easily engage the outer surface of the plate adjacent one leg with a thumb or finger and push the plate toward the other leg to compress the telescoping tubes to remove and replace a used up roll of material.