Flip It Replacement Universal Tub Drain Stopper, Chrome Finish. This stopper contains a unique ball-shift toggle system which opens and closes drain with a simple push of toe or finger, its over 90% of tub drain openings (1-3/8" to 1-5/8") No tools required for installation. Simply affix the supplied "O" rings and press into drain to form water tight seal., Made of top quality DELRIN and ABS plastic with choice of finishes No more scummy or moldy plugs with the tub stopper, Replaces Old Worn Out Leaking Tub Drains, Installs Easily With No Tools Designed To Stay In Drain But Can Be Easily Removed For Cleaning, Made Of Delrin And Abs Plastic Chrome Plated, Includes 3 Sets Of O-Rings To Insure A Good Seal In Any Size Drain