Review on Highly Efficient Master Plunger MP100-1: Clears Toilets, Kitchen Sinks, Garbage Disposal, and More with Automatic Air Relief Valve - Navy Blue by Mikey Jackson

This was the first time I had a plunger with ridges and ridges on it. You just have to be careful how you put it in the toilet for the first time as the water may splash on you. (It's better to insert it at an angle rather than straight up and down) We had a terrible clog in our bathroom toilet yesterday (water all over the floor) and I submerged intermittently for 3-4 hours before the clog finally cleared solved. After such a long dive, the plastic handle began to bend violently. All in all I would buy this piston again and it has performed well for us over the past 8 months.