Igishushanyo mbonera: Kuri8.1cm x 10cm(kwaguka kuri16.2cm), iwacuumufuka mutozakozwe muburyo bwo gutwara ibintu bitabangamiye ububiko. Buri gice kirangaIkarita 4, byuzuye mugutegura indangamuntu, amakarita yinguzanyo, namafaranga neza.
Kuramba: Yakozwe mubikoresho byoroheje nyamara bikomeye, ibiabafite amakaritaihangane kwambara buri munsi mugihe ukomeje kugaragara neza.
Guhitamo-Nshuti: Ongeraho ibirango, amabara yikirango, cyangwa imiterere idasanzwe kugirango ukore ubunararibonye buranga.
Hindura buri kantu kugirango uhuze n'irangamuntu yawe:
Ikirango Gushushanya / Gucapa: Erekana cyane ikirango cyawe hanze cyangwa imbere.
Guhitamo Ibikoresho & Ibara: Hitamo mu mpu zikomoka ku bimera, imyenda itunganijwe neza, cyangwa ibyuma birangiza.
Gupakira: Hitamo ibicuruzwa byanditseho agasanduku cyangwa ibidukikije byangiza ibidukikije.
Ingano Itandukanye: Hitamo muri8.1cm(compact) to16.2cm(yaguwe) kugirango ihuze ibyifuzo bitandukanye byabakiriya.