This wire mesh is welded from 304 stainless steel wire.The holes diameter of metal mesh is 1/2", the wire diameter is 14 gauge (about 2mm). It's very strong! Suitable for all kinds of heavy-duty projects.The metal screen is a flat metal mesh, you receive it is unfolded, Suitable for many DIY projects, such as vent ,chicken wire mesh,fire pit screen ,pet screen roll ,rodent mesh , pet proof screen ,mouse proof dryer vent ,dryer vent screen BBQ grill,car grill,Cabinet net,Fireplace net,Drainage net,garden net