The Chinese ones aren't terrible, but they aren't the best either. My Wal-Mart had a slew on clearance awhile back and I bought up a bunch for stocking stuffers and extras in trades and such. What I found is no two are exactly alike. One package would be spot on, the other too tight, the other too loose. But, overall to have as a handy keychain backup that won't break the bank...they are nice enough.
