A Censer, incense burner or perfume burner (these may be hyphenated) is a vessel made for burning incense or perfume in some solid form. These vessels vary greatly in size, form, and material of construction, and have been in use since ancient times in many cultures, in both secular and religious contexts. They may consist of simple earthenware bowls or fire pots to intricately carved silver or gold vessels, small table top objects a few centimetres tall to as many as several metres high. Many designs use openwork to allow a flow of air. In many cultures, burning incense has spiritual and religious connotations, and this influences the design and decoration of the censer.