PRODUCT RATING: 5 out of 5 (Blank: Not Rated). Click on this link to see more information, images, reviews by real users and alternatives:

Bathtub Stopper, Tub Stopper, Bathtub Drain Plug, Universal Bathtub Plug Sink Stopper for Kitchen Bathroom Shower Laundry Sink Drains
☆【UNIVERSAL FIT】Fits most 1.1 inch~2.0 inch inner diameter bathtubs and drains. Please check your drain dimensions before buying.
☆【HOW TO USE】Place Tub Stopper over the drain and press down firmly to create a seal. To remove the stopper, simply pull up on the top knob to break the seal and lift it out of the drain.
☆【APPLICATION】Our Bathtub Stopper can be used in a variety of applications and not just bathrooms. Such as kitchens, garbage disposals, sinks, bathtubs, laundry sinks, and more.
☆【PACKAGE INCLUDES】1 x Bathtub Stopper.
List Price: $5.99