Daiso DAISO Silicone Cake Mold Donut Ears Bear Cat White Set of 2 Dishwasher, microwave, and oven-safe Material: Silicone rubber Cold/Heat Resistance: -30°C to 230°C Since it's made of silicone, it easily attracts fibers. I will pack it with care, but please refrain from purchasing if you are overly concerned. It will be placed in an OPP bag and shipped.