Excellent Quality Material: This pond drain strainer is made of explosion-proof and crack-resistant thick stainless steel, it is seamless and no water leakage, designed to resist scratches, corrosion. Universal Size: This pop-up pond drain strainer can fit all standard sinks with a drain hole size of 1-1/2" to 1-3/4" (1.45 to 1. 96 inches). The spring mechanism of the bathroom sink drain stopper works well and has good rebound ability. Unique design: the 2-in-1 bathtub stopper and strainer can be washed to prevent hair and valuables from flowing out of the bathtub and avoiding unnecessary blockages. Installation: Due to its simple structure and high practicability, it does not require any tools, just need to remove the old one and insert the new bounce core to complete the installation. Application: The click-clack pop-up pressure plug is suitable for bathrooms, sinks, kitchens, basins, bathtub, laundry basins, swimming pools, etc.