Your food processor () uses a KW602121 / 9922 belt which is a 260 mm rubber strip to transmit the rotation of the motor. The KW602121 / 9922 belt is cheap and ships the same day.
Same day shipping
Return and free exchange within 15 days
Spare part : synchronous belt (toothed belt)
Elastic belt : no
Length : 260 mm
Fits in : food processor /
Reference : KW602121,
Weight : 42 g
Here are examples for partial reference for home appliances :
Where to find the reference?