Toilet paper is available in several types of paper, a variety of patterns, decorations, and textures, and it may be moistened or perfumed, although fragrances sometimes cause problems for users who are allergic to perfumes. The average measures of a modern roll of toilet paper is ~10 cm (3 15/16 in.) wide, ø 12 cm (4 23/32 in.) and weighs about 227 grams (8 oz.). An alternative method of packing the sheets uses interleaved sheets in boxes, or in bulk for use in dispensers. 'Hard' single ply paper has been used as well as soft multiply.