Improve Showering Experience: the shower head extender is made to extend the length of the shower head and lower it down, making it more convenient for you to take a shower, improve your showering experience | Reliable Workmanship for Lasting Service: made of quality stainless steel, the shower head extension arm is compact and sturdy, not easy to leak, deform or rust, so you can use it with confidence | Reasonable Size to Use: the package comes with 2 pieces of shower head adapters, designed with a length of approx. 50 mm/ 2 inches, enough to meet your using and replacing demands in daily life; Please check the size carefully before ordering | Satisfactory Practicality on Various Occasions: the shower arm extension can be widely applied to fuel equipment, piping, pneumatic systems, gardens, swimming pools, etc., which can bring people lots of convenience | More Details: the shower extension coupler has evenly carved threads (1/2PT), with the outer threads measuring approx. 20.4 mm/ 0.8 inches, and the inner threads measuring approx. 18.3 mm/ 0.7 inches