HA KO Paper Incense - Wooden Box SetA curated sampling of HA KO incense in a gift worthy box. This special wooden box set comes with five individual leaves of HA KO Paper Incense and includes a felt mat so you can enjoy them right away. Each leaf can be used as subtle potpourri, giving off fragrance for up to three months, or as incense that burns for approximately seven minutes while cleansing and deodorizing an area. Materials: Wood box, washi paper, IFRA compliant synthetic.