Helu. Comb. Helu (comb) or helu tu'aniu (coconut midrib comb) as they are commonly referred to, are ornamental combs which are worn by females in Tonga. They are a popular personal adornment amongst Tongan women and girls alike, and rose to popularity in the 18th century. Helu are primarily made from tu'aniu (coconut midrib), bound with pulu'i niu (coconut husk) and decorated with beads. Helu can also be made from other materials such as wood and tortoise shell and are ornately carved. This is a helu tu'aniu which has a point at the top that tapers outwards towards the bottom. The top half of this helu features a thick band of lashed tu'aniu as well as other decoratively lashed motifs throughout. This helu features two triangular cut outs towards the top.