These Knives come in a pack of 10, in 4 colour options and made of hardwearing Polycarbonate. This material will not chip, splinter or shatter and is highly stain resistant. Microwave safe for reheating food, extremely durable and 100% recyclable. Dishwasher safe, provided the dishwasher is operating at the correct temperature (max. 90°C) and that the detergent is compatible with polycarbonate (this is noted on the detergent pack). Compliant with EU 10/2011.