Ty-D-Bol’s In-Tank Bleach Tablet helps keep your toilet clean fresh and free of odors with every flush. Drop the tablet in your toilet tank to release powerful bleach that automatically cleans and deodorizes your toilet bowl clean between scrubbings. Wrapped in a special water-soluble coating to prevent direct contact our Blue Tablets are proven safe for your kids pets and plumbing. Comparable to Clorox and 2000 Flushes bleach tablets – Each Tablet Net Weight: 1.2 oz. (35 g).