Safety sink protector: the sink mat is made of robust flexible PVC material, adheres to the bottom of the sink and prevents scratches on the surface, especially suitable for your expensive sinks (stainless steel double sink, porcelain sink, granite sink, quartz stone sink) to provide the most safety protection. Warm reminder: do not place the coil mat in boiling hot water, as this will bend and deform the coil mat. If the sink mat you receive is uneven, you can soak it in warm water to meet the requirements. ADJUSTABLE SIZE: The sink protector is 40 x 30 cm and can be cut to any desired area based on the bottom of the drain plug. Please check the size of the sink before purchase to avoid an incorrect size. Improved design: the square design allows water to flow through, the sink does not get wet and the water drains away quickly and easily for a faster air drying. To prevent the sink mat from becoming greasy after prolonged use and difficult to clean, it is advisable to soak it in soapy water after each use and clean it with a brush or sponge after each use. < p>Versatility: this sink seat can be used as a soft sink mat, dish mat, countertop protector, very handy for use in the kitchen. NOTE: This washing mat looks like dark charcoal when you look at it in a different light or from different angles. This is normal and does not affect its use.