Brass Body: The solid brass body construction of these shower head adapters provides much higher performance (high heat and pressure resistance) and durability than plastic ones.LARGE WATER FLOW: The flow rate is 7.8 GPM, with no flow restrictionsYou can enjoy a rain shower even if your shower head is up to 16 inches.Rustproof: Made of brass, the swivel extension arm shower head adapter shower head can protect against corrosion.ROVING BALL: The swivel angle of the ball joint connector is 23. This swivel ball allows you to adjust any angle of the shower head after installation. The shower angle can be easily adjusted to suit children and adults, providing the perfect showering experience for every member of the family.Easy installation: this universal connection fits arms shower heads and shower heads with standard G 1/2 straight thread.