Bathroom Sink Round Hole Overflow Cover Basin Ceramic Pots. Feature: Durable Solid Brass Construction Engineered for a Lifetime of Use All Copper Overflowing Ring Suitable For 23mm-25mm Round Overflow Hole Specifications: Material: Brass Floor Drain Method: Gravity Flushing Size: Others Application: BASIN Style: ROUND Type: Drains Surface Treatment: Chrome Plated Model Number: LY3044. We are an international based seller that will ship your order from abroad please at least a minimum 21 working days for delivery right now due to the ongoing delays in shipments globally.