Review on Eureka Longevity Belt Kit by James Duffield

I ordered this belt amongst other options because I needed the 61120G belt for my Eureka 4703 and thought it would be nice to have a spare. Both belts burst a few seconds after take-off. I even added some lube after the first time and no, it broke right after turning it on. Terrible product and no less from the manufacturer? For what it's worth, I'd like to say that the product description says the straps are not for the 4700 models, but there are several questions and answers on this page that indicate the straps in this set are the same as the 61120x belt. If the information on the page is incorrect, it is up to the seller to clarify. If this is a 61120x belt then this is really poor quality work.