Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Absolute junk

These poles are very weak and very poorly built. After only a few uses during practice hiking, one of the poles lost its telescoping ability. Then, during the Grand Canyon hike for which these were purchased, the other pole broke within the first hour and it wasn't even fully extended. My friends, who bought cheap poles from Wal-Mart and Fleet Farm, laughed at me the rest of the trip. Theirs made it through the entire hike and are ready for more. Mine almost killed me.