Ikoti ryamasasu rimara igihe kingana iki?

Intwaro yoroshye: imyaka 5-7 (UV guhura na fibre degrade fibre).

Isahani ikomeye: imyaka 10+ (keretse niba yacitse cyangwa yangiritse).

Buri gihe ugenzure amabwiriza yabakozwe kugirango arangire.