10 zebra nerite snails unknown nerite snails are algae chow hounds! zebra nerite are small but very pretty tank additions that are plant safe. avg size is approx 1/2", nice youngsters! they will be shipped in a kordon breather bag inside of a styro lined box with a heat pack if needed. shipping is generally done on tuesdays via 2-3 day priority mail. be sure someone is available to receive the package. i package extremely well but in harsh weather packaging can only go so far to protect them. doa policy (rare but still need to address it) 100% live arrival guarantee priority mail... doa will be replaced or credit given. replacement shipping paid by buyer. i pack my packages very well so buy with confidence!