Mah... without pics everything is leaved to imagination. I say no, but I wouldn't use those as a (if I got everything well, English isn't my language) sort of cover. Seems too light, not for the munching part itself, but for resist.I use paper coffee filters
Was was looking at that picture thinking exactly what you typed. Nope. Those are definitely deadly spiders capable of chewing through expanded metal up to 16 gauge. But I also believe in the tooth fairy.Oh it's a little garden orb weaver.