it can rotate 360 degrees to make the water flow in the swimming pool more even. MATERIAL: Our thread return jet fitting made of PVC material, hard and strong to use ADJUSTABLE DIRECTIONAL: The outlet can be adjusted to control the direction of the outlet, which is very suitable for the massage nozzle and provides comfortable water flow SIZE: the nozzle pool hose has a 3/4 opening and a 3/4 thread to fit 3/4 PVC pipe. The 1/2 inch rotatable eyeball that can be adjusted and locked in place with the outer locking ring SUITABLE FOR: The open directional flow inlet pipe fitting is a good substitute for the water outlet of the swimming pool. Suitable for most swimming pools, SPAs, ordinary baths, etc. Delivery Quantity: 3pcs Product color: white Product size: 2.4inch