Polar M600 Replacement band for strap

The small straps for the Polar M600 Strap is a consumable and since there is no replacement part available for the small straps I've created this simple object.

Haven't printed it in PolyFlex yet, but in PLA it looks OK. The object really needs to be printed with flexible filament because it needs some stretch to get it around the strap itself. Except for the sharp edges :)

First design I created with OnShape
https://cad.onshape.com/documents/8c451d576e530b6b5e68d9c7/w/807bbdbe89443fc3bda