BRASS BODY: Solid Brass body construction of this shower head adapters provides much higher performance (high heat-resistance and pressure-resistance) and durability than plastic ones. This shower head swivel adapter can serve many years without leakage. LARGE WATER FLOW: Flow rate is 7.8 GPM, definitely NO flow restrictions! You can enjoy rainfall showering experience even your shower head is as large as 16-inch. RUST PROOF: Constructed of brass, the shower head swivel adapter of shower head extension arm can protecting against corrosion & rust and need trivial maintenance. SWIVEL BALL JOINT: Ball connector swivel angle is 23(11 per side). This swivel ball allows you to adjust any angle of the shower head after installation. Shower angle can be easily adjusted to accommodate both kids and adults, providing perfect shower experience for every family member. The connection is tight enough that it won't fall back down after swiveling to any angles. Swivel it and it will stay the exact position you need. EASY INSTALLATION: This universal connection fits with standard G 1/2 straight threaded shower arms & shower heads. Just twist on.