Made of silicone material, Square Fluorescence Ashtray is versatile and portable for indoor and outdoor use. Non-stick surface for easy residue removal. Put the ashtray under sunlight or lamps, the more light it absorb, the longer it will shine. The ashtray is equipped with a deep reservoir that can hold a generous amount of ashes, preventing unsightly spills or messes. Large imprint area to show your brand and logo.