Blue White Seashell Nautical Beach Twin 5 Piece Comforter Set Twin is a 5 piece set that includes comforter, bed skirt, sham, and 2 decorative pillows 7 piece comforter set features seashells in shades of blue on a white ground with blue and white stripe accents. 100% Polyester. Machine wash. Tumble dry. Spot clean decorative pillows. Twin 66" x 86" comforter