Does anyone know what these snails are??

I purchased some plants and found these little hitchhikers on them, I removed them and kept them out my tank, I can’t seem to find what they are online. Does anyone have a clue what they are and the effect they will have on my tank ??
Kind Regards
Matt

Spike tailed malaysian trumpet snails. Fantastic freebie snails as these are not easy to find

They will help aerate your substrate and are great to prevent buildup of anaerobic pockets, and help with plant roots too. Beneficial snails.