This tool is used to smooth caulking - the silicon stuff that is used in kitchens and bathrooms to seal between benches and tiles. I printed this in PLA but it's a bit too stiff. I printed in TPU and it's perfect!
The small corner is 10mm and the large corner is 16mm.
The total size is 57x57x2.4mm.
Printed with a 0.6mm nozzle and 0.2mm layer height. Model is 57x57x2.4mm. Took about 20mins with PLA and around 80mins in TPU.
The author hasn't provided the model origin yet.