The practical overflow rings are designed for bathroom ceramic wash basin, can also be used in kitchen wash basin. Made of ABS and brass material and durable to use. The surfaces are smooth and sturdy, so the bathroom sink overflow rings won''t scratch your bathroom basin.Features-Color:Black.-Material:Brass, ABS.-Size: About3.00X3.00X1.40cm/1.18X1.18X0.55in.- Note: It is suitable for 22mm-24mm round overflow hole.- Made from ABS and brass materials, provides corrosion performance with increased toughness and durability.-Wide range of application. Can be suitable for most of the bathroom sink on the market.-Widely used in homes, shopping malls, hotels, factories, including the kitchen.-The simple color of the overflow rings can perfectly match your bathroom sink.-They are in simple structure and can be easy to install. You can use it without worry.Packing list2 x Sink Overflow Covers