Material:Food Grade Silicone;Mold size: 11.7 x 6.8 x 0.8 inches;Color:it is Random color if no special note;Heat Resistant Temperature -40 to +230 Centigrade (-40 to 446 F);Color: randomly; Flexible and non-stick: baked goods pop out easily;Dishwasher-， refrigerator-， freezer- and microwave-safe.