Features: Plug Bolts is make of Copper, which is very Enduring and have long service life. it can be used for long time. Adopting spring mechanism and screw thread push bounce. Easy to screw on and down. Easy bounce designs makes it convenient to use and store, no need to take up too much space. Crafted with precisions, it provide a seal to prevent water leakage. Fit most bathtubs and shower drain. it is a great replacement part for your old or broken. Specifications: Materials: Copper Styles: 25mm thread 16mm/25mm thread 18mm/13mm thread 16mm/16mm thread 16mm Size: as shown in the picture Package Includes: 1pc Bounce Plug note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.