Website legitimacy?

I have the Hiby Eva R4 and want these matching in ears but I’m not too sure of this site’s legitimacy and I don’t want to get scammed at all.
Has anyone bought from them?
Also does anyone have these in ears? Are the tips shown all it comes with or does it come with various sizes?
Link:

https://www.mtmtaudio.com/products/e-audio-eva-earphone-01-neon-genesis-evangelion-edition-hybrid-triple-driver-in-ear-monitors-with-detachable-0-78mm-cable-handcrafted-design-hi-res-audiophile-sound-3-5mm-4-4mm-plug-options