In 1994, we thought that poi disposal is not only important to beautify the environment, but also to prevent the negative effects of fish and birds caused by fires and filters, so we announced this ashtray for outdoor use as a specific suggestion. The suction compartment is made of aluminum alloy that has been anodized after hand finished. It is also easy to clean because the ash inside is not leak out. It also has a belt clip and a neck strap for easy on and off with an engineered plastic slide cap that doesnt lose its elasticity. Holds approximately 15 suction cups.