Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: how can hard wooden beads be so comfortable?

The Komfort bead wood beaded seat cushion was purchased as a gag gift, but it truly is VERY comfortable! Keeps you cool on hot days when the car has been sitting in the sun. The only reason it didn't get 5 stars is because I think it needs a better system to attach to the car seat itself. However, I did buy an extra one for my leather desk chair, figured out my own system for attaching it to the chair and it works great there too! Great product, shipment was prompt!