Crack in vacuum bell jar (plastic)

I bumped the vacuum caster’s plastic bell jar on a countertop corner and now there is a single 3/4" crack on/ in it. Not a chip, not a star shape- just a thin crack. Can I still safely use it for investing or will it explode?
Thank you!

You can use it as a cover or decoration.
Do not use it with vacuum or it will implode and may potentially hurt you and someone else.
I dont think they are repairable. You will have to look for new.

Thank you. I appreciate your response.
My dome will be used in the garden from now on.

Great idea. Miniature green-house.

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