Reducers are designed for round punchers.
- 40/38- for a puncher labeled 40 mm for BioThane strap 38 mm
- 40/25- for a puncher labeled 40 mm for BioThane strap 25 mm
- 20/19- for a puncher labeled 20 mm for BioThane strap 19 mm
- 20/16- for a puncher labeled 20 mm for BioThane strap 16 mm
Material: PLA (polylactic acid)