Model 1624. NATO/ZULU watch strap adapter for Casio G-shock watches for 16mm lugs. Fits up to 24 mm straps. Pin hole fits approx 2mm pins. 2 adapters included.
There may be excess print material inside the pin holes. Use a toothpick and gently push out excess print material.
Disclaimer: Avoid using straps thicker than 2mm as this may cause extra stress on the plasitc version of the adapter that may cause it to break.