Prevents Colour runs and allows mixed washes. 12 sheets. During the wash, the sheet removes and holds on to loose dyes and dirt, preventing colour runs and discolouration of your laundry. Suitable for hand and machine washing. Suitable for use at all temperatures and on all fabrics. Safe for the dryer. The sheet is biodegradable and safe for the environment. Instructions:1.Place sheet at the back of the machine drum before loading the washing. Use2-3 sheets for new, dark or non-colourfast garments. 2.Add your normal quantity of washing detergent and select your normal wash cycle. 3.At the end of the wash, take out the sheet(s) and discard.