Ikea 15 Laundry Wash Bags w/ Zippers & Hanging Hooks Protect Delicate Clothes in the Washing Machine Pressa, 15 Wash Bags Sizes: 5 pc 12x15 3/4-in (white) and 10 pcs 15 3/4x19 5/8-in (white and black). The washing bag has a hanging hook for easy drying and storage. Protect your delicate garments in the washing machine by putting them in PRESSA washing bag with zipper. 100 % polyester Machine wash, warm 104 F(40C). Use the white washing bag only for light colors and the black washing bag only for dark colors to avoid any risk of discoloration. Do not bleach. Do not tumble dry. Do not iron. Do not dryclean.