Bangle.js has a non-standard watch strap that is held in by pins that go through the body of the watch.
This is a red replacement strap for Bangle.js.
Check out how to remove the straps at https://www.espruino.com/Bangle.js+Disassembly
Bangle.js Strap (red)
- Brands Espruino
- Product Code: BANGLEJS_STRAP_R
- Availability: 39
- Ex Tax: £4.99