Review on Hanker 2PCS Anti-Splash Filter Faucet Aerator with 720-Degree Swivel, Dual Function, 4-Layer Net Filter, Leakproof Design, Double O-Ring, Lnter and Outer Adapters by Hector Smith

These faucet aerators are good, but not perfect. While they move well, they do have a holding point that you need to readjust to get them moving. They're made in communist China, so they're not certified by the NSF or any other safety testing group. I personally don't think I would trust them safely enough to use as an advertised "drinking fountain". They came in 2 boxes and one box was marked 'gift'. However, both faucets were in one box and adapters/washers in another. So don't give anyone a box of washing machines by accident.