Introducing a 2-pack of super absorbent sponge “Dry Plug”! !

Unlike common diatomaceous earth sticks, PVA sponge is used! PVA is an abbreviation for polyvinyl alcohol, a type of synthetic resin that is extremely hydrophilic and has the characteristics of an ultra-fine sponge density. In other words, it is a super excellent thing that absorbs a lot of water at once than a normal sponge!