Ikireka cy'Umusatsi Polygon ni ikireka cy'umusatsi cyakozwe kugira ngo gikoreshwe buri munsi mu gushushanya umusatsi. Imiterere n'aho udufindo two gufata umusatsi duherereye bitandukanye n'ibiri ku bireka bisanzwe by'umusatsi, bityo bikaba byemerera gufata umusatsi munini. Imiterere n'aho utu dufindo duherereye birinzwe n'impushya (patents) muri Amerika na Japani. Iki gikoresho cyakozwe muri aluminiyumu, ibyo bikaba bituma kiba kiremereye buhoro ugereranyije n'ibireka bya kera byakozwe mu bindi byuma. Umubiri woroheje ugumana umusatsi igihe kirekire, kandi ugabanya akababaro katewe n'ibireka biremereye. Imiterere yacyo yakozwe hakoreshejwe ikoranabuhanga rya mudasobwa (computer-aided design), hanyuma gikorwa hifashishijwe ibipimo bya rubber n'uburyo bwo gushonga no gucuruza ibyuma (casting).

Izina ry'umushinga : Polygon, Izina ryabashushanya : KOH MATSUURA, Izina ry'abakiriya : POLYGON HAIR CLAW.

Rimwe na rimwe, ukenera itsinda rinini cyane ryabashushanyije bafite impano kugirango bazane ibishushanyo byiza rwose. Buri munsi, turagaragaza ibihembo byihariye byatsindiye udushya no guhanga udushya. Shakisha kandi uvumbure imyubakire yumwimerere kandi irema, igishushanyo cyiza, imyambarire, igishushanyo mbonera nigishushanyo mbonera cyimishinga yaturutse mumakipe ashushanya isi yose. Shishikarizwa nibikorwa byumwimerere nabashushanyo bakomeye.