Kato alu. Coiled basket woven from alu. Kato alu are used in special occasions such as weddings, birthdays and funerals, they are exchanged with other koloa as part of Tongan gifting and exchange within family groups. Traditionally they were only used by royalty or those of high status, but nowadays they have become more prevalent amongst all Tongans. This kato alu is circular in shape and black in colour, it has an inner of tu'aniu (coconut midrib) that has been coiled and wrapped with alu (creeper plant) fibre. The outside of the kato is overlaid with kafa to make different patterns.