Safe and Comfortable: RP19804 spool adopts pressure balance design, single-function pressure balance temperature control, which can keep the water temperature within a safe range for the human body, helping to protect you from sudden changes in cold or hot water pressure when showering. Advanced quality: The shower core adopts plastic structure as a whole, which improves the durability of the product, prolongs the service life, and saves water and money. It fits perfectly on your faucet. EASY TO USE: Easy to install and repair leaky faucets, no need to replace the whole faucet. Before inserting a new , clean all contamination from the area around the previous . FUNCTIONAL: Compatible with all Single Handle Display 13/14 Series Bathtubs/Showers, offers single function only pressure balanced temperature control, keeps the water temperature within a safe range. Material: The plastic construction of this shower head is durable, and the entire shower part can be easily replaced. Save , time and money. Name:Faucet Spool Colour:Blue Material:plastic Size:3.5x3.5x8cm Package Contents: 1 * Faucet Spool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.