Use 30 rectangle (1:2) sheets of origami paper. Difficulty : Time: 1. 5 hours Each unit as a razor blade. Model paper size: Unit (purple) : 3. 75 cm x 7. 5 cm Model height: 11 cm Model designed by Sansanee Termtanasombat (Praew) from Thailand. Website: PrwOrigami Quiz (Android): Tshirt: Tip: บรจาค: Twitch: IG: instagr