I hate travelling without my Etymotic ER3XRs. The original eartips were falling off in use. These replacements worked out fine, stay on and brought the audio reproduction back to the original quality. Really pleased and wish I'd gotten around to replacing them sooner. Five pairs in the bag, so I wont leave it as long next time.

I'm using ER3SE. This eartip is a bit smaller than the original one. However, I found it is more comfortable for me. Definitely, this type gives the best sound compared to the large or memory form tips.

These eartips are a perfect replacement for the stock eartips of the ER20 earplugs, and they fit just as well as the originals in my ears.

I bought these after the original eartips of my ety er3xr got ripped. These actually fit me better than the original pair. The quality is also quite good and comparable to the original ones.

This is not the same eartips that come installed for er serious. The pre installed is frosted texture and slightly thicker while the the delivered is clear rubber and thinner.. it actually fits better for me. The picture is showing frosted is misleading. DO NOT BUY if you find the pre installed tips on the er series too small.