Oudi cones, also known as oud cones, are small, cone-shaped objects made from a fragrant resin known as "oud" or "agarwood". Oud is a rare and expensive resin that is derived from the heartwood of certain trees, primarily the Aquilaria tree, which is found in Southeast Asia. Oudi cones are commonly used as a traditional incense in many cultures, particularly in the Middle East and South Asia. The cones are burned on a small charcoal disc or in an incense burner to release their fragrance. The scent of oud is known for its rich, woody, and musky aroma that is said to have a calming and meditative effect on the mind and body.