Carhartt x Kuumba International Static Mini Incense Sticks 15 Pack in Multicolor. Crafted in collaboration with Japanese brand Kuumba, these Carhartt incense sticks are crafted from 100% bamboo and are ideal for use within any home or office setting. Made in Japan with a static fragrance designed exclusively for Carhartt WIP, this aromatic pack of 15 incense sticks boast an approximate burn time of up to 30 minutes per stick.