Description: 【Sink Overflow Rings 】: Sink Overflow Rings are designed specifically for ceramic basin overflow holes and is suitable for washbasins, mop pools, and similar sinks 【Multifunctional】: Sink Basin Trim Overflow Covers can be used to decorate the overflow hole, stabilize water flow, and provide basic filtering to prevent debris from entering 【PP Material】: Insert in Hole Round Caps are made of wear resistant PP, making it Sturdy. Easy to use for a long time 【Dimensions】: Sink Hole Round Overflow Covers have a bottom diameter of 24.7mm, a height of approximately 15.5mm, a top diameter of 30.5mm, and an inner diameter of 18.5mm 【Easy Installation】: Round Basin Covers have a simple design and is easy to install. It fits ceramic basin overflow holes with diameters between 22 and 24mm Specification: Material: pp Size Chart: 30.5mm, bottom diameter 24.7mm, height approximately 15.5mm, top diameter 30.5mm, inner diameter 18.5mm Package Includes: 6 Sink Overflow Rings Note: Please allow slightly errors due to manual measurement and different monitors.