In the very first summer, the glue began to flow out from under the rubber bands, and the rubber bands themselves began to crawl. This is a warranty case, but I did not drag the device anywhere, I operated at home. I tore off all the rubber bands, cleaned it from the factory sludge, which is not worthy of being called glue, put it on normal superglue. However, you do not expect such problems from a mouse for such money. In general, the device is solid, but there are some jambs.