These professional quality laundry washing bags are for T-shirt, blouse, trousers, sweaters, coat, jacket etc, great for shared washes. 6 wash bags included: 3 medium(30 x 40cm); 3 large(40 x 50cm). Durable and breathable polyester fibre material, protects your clothing healthy and clean . Strong, smooth snag resistant net bag. Made from high quality, personalized design makes the foam easier to clean Tight zipper design makes it easy to find your belongings, then keep them from getting lost . Product Professional heavy duty net bag is designed by high quality material , aimed for washing machines and tumble dryers. the laundry bags can help to keep your clothes in previous state, make your life easier. in the meanwhile Protect crock of washing machine and lengthen the usage of washing machine. Dimensions: 30 * 40 cm: suitable for blouse, T-shirt, underwears, socks, etc. 40 * 50 cm: suitable for blouse, sweater, trousers, dress, etc. tips: Choose the suitable bag for washing, When filling clothes,in order to make the washing easier and quicker,please make it less than 2/ 3 of the bag's volume. Then, put it into washing machine after zipper being fastened up.