Here is a PBR textured Donut box. you can use as environment object, research, Urban Criminal games of found based games. You don't have to use Height and metallic but in special cases, you can use 32x32px black colored map for metallic.

1086 POLY

For Texture maps ; Pbr Maps Contains
2048 x 2048 Albedo TGA
2048 x 2048 Normal TGA
2048 x 2048 Ao map TGA
2048 x 2048 Roughness TGA
2048 x 2048 Height
2048 x 2048 Metallic