Gundam – F91 with a scale of 1:144 is a type of HGUC (High Grade Universal Century) item introduced in the Gundam F91 series. Gundam – F91 is made of very good quality plastic material, making it s ... uitable for children aged 8+ years. Gundam – F91 is suitable for beginners because of the few parts and the easy level of difficulty assembling so that it can help children's accuracy, patience and imagination when assembling this Gundam model kit.