The wooden ring is measuring approx. 4.6 cm in diameter inside, and 6.8 cm in diameter outside.
The wooden rings are approved for children under the age of 3. Tested and certified regarding non toxic materials. EN71-1 certificate.
Perfect..for babies first teething rattle. And for using as a hole for face wipe box covers. And items arrived on time.
Nice quality, baby love teething on this, no bits break off and baby safe