Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5898684.

Unfortunately, planned obsolescence is used even with cheap seals these days. After a while, the sealing lip of this sink seal became brittle and broke off. Of course, the manufacturer does not offer any spare parts, but recommends buying a completely new sink. Ridiculous! The defective seal can be easily replaced with the uploaded spare part. It must be printed in the given orientation from TPE or TPU.