Instruct: Classify Amazon reviews into positive or negative sentiment
Query: fall apart

I own a set of these knives and the handle material has "melted" off and is a mess! I had them for about 18 months before I noticed the problem starting on one of the knives. I thought it had been laid down on a hot surface or something but then the others started the same problem. The black part just comes apart and leaves a sticky residue on your hands!I had no luck in resolving this issue with Cold Steel so the knives have been banished to the garage as a "project" to someday put a wood handle on them. (yeah right, I just hate to throw them away!) I really like the blade but the handle material failed me.I would guess they were not dishwasher safe.