Questions about hotel badges

At present, metal materials are mostly used, usually 70*20mm and 60*20 mm, so it is usually recommended to design them in conventional sizes. In shape, it can be round (the normal dimensions of a circle are 25*25 and 35*35mm), square or irregular. In the case of abnormal shape, the metal badge may increase the mold cost when making, but acrylic material is not needed.