●Water saving: You can control the water consumption during the shower by shower flow reducer restrictors. ●4 Different Flows Rates: The flow reducer set contains 4 different flow inserts to meet your needs: yellow insert: 11L/min; red insert: 7L/min; blue insert: 5L/min; black insert: 1/2L/min. ●Material: Made of rubber, durable and strong, and have a long life cycle. ●Wide application: In new or existing shower devices, including hand-held shower heads, shower nozzles, bidet sprayers, etc. However, it is not suitable for taps. ●Easy to install: No tools are required. Simply remove the old seal from the shower hose and install the desired flow limiter with the seal. Within minutes, water consumption is significantly reduced.