PREMIUM MATERIAL: The faucet cartridges are made of high-quality brass and ceramic, durable and rust-proof for long-term use. Wide range of applications: suitable for bathroom basin mixers, kitchens, etc. Both cold and hot water are suitable. EASY TO INSTALL: 1 screwdriver and wrench do the job perfectly. Easy to turn and drip-free. Simple to use: turn the faucet clockwise (blue) and counter-clockwise (red). Wide range of applications: Our ceramic disc cartridges are suitable for kitchen and bathroom mixers with dual handles. Packaging information: You will receive 2-pack ceramic faucet valves (1*Blue and 1*Red) Good sealing: can prevent your faucet from leaking, you don't need to replace the faucet again. PREMIUM MATERIAL: Made of high-quality brass and ceramic, our quarter-turn faucet filters are durable enough to withstand high temperatures and serve you for a long time. The faucet valve core is made of high-quality brass and ceramic, which is durable and rust-proof for long-term use. Red and blue O-rings on the bottom of the spool are easy to distinguish, making installation easier. Fits most faucets, please double-check the dimensions in the specification chart before purchasing to ensure compatibility with your faucet. The set includes two ceramic faucet valves (1*blue and 1*red) for faucets in bathrooms, kitchens, etc. It can be used for single or double mixers for hot and cold water.