Pro:
These fit my Sennheiser CX300 earbuds without a problem
3 sizes in the package
They stay on the earbuds tighter than the originals
One of the sizes is smaller than the original, which fits me better Con:
Shipping was kind of high; why send them in such a big box?
Would have given it 5 stars where it not for the shipping cost doubling the price of the item.
Essential backup for the in-ear headphone user:
The buds do get dirty and sometimes slip out of the speaker heads. So, it is nice to have these backup buds. Fit both my sony and sennheiser in-ear heaphones quite well.
Nice buds!:
These worked great on some replacement Sony earphones I had. My cats like to chew on the buds.
replacement earbuds for sony:
These replacement earbuds fit well on my old sony earbuds that would always lose the rubber buds. I've had the sony's for quite awhile. I think they are the old mdr 51's, with one cord short and one cord long from the bifurcation in the wire. Too soon to know if these will fall off as easily, but at the price, it doesn't matter. The vendor, Generic, sent them quickly.