50pcs 40-130mm Mix Cassette Tape Machine Belt Assorted Common Belt

at the end of the last video we torn this cassette deck to pieces and when searching for replacement bounced on the internet I found the service manual and that had the part numbers for the two belts searching for the part numbers only came up with a couple of results the two belts fell I did find that looked like there were om replacements will it cost around $50 to buy all four belts there was an over vendor on eBay I had a replacement set for about $20 I decided to buy a packer if 60 your sort of belts for under $5 so I'm hoping that there will be one or two belt sizes that work I marked the original belt or tape so I didn't lose them and started to compare them with the ones that came in the pack took a lot measurement of the bell but seemed to be closest and it's a little under the 10 centimeters with the original belt but I figure the original one had stretched a little anyway now