...it goes right over the head. Given that one's head is not too big.

"Kalabubu, a traditional necklace for men in Nias culture. Kalabubu is very unic crafstmanchip because made from coconut disk. Nowadays, tourists often buy this necklace as souvenir when they visit Nias Island. This photo was taken by Mr. Java Yafaowolo'o Gea, owner of Go Nias Tour travel agent."