Fits Petzl Vertex, Alveo, Husqvarna & some Stihl safety helmets.
Features & Specs
- 30mm Standard slot for ear defenders
- Fits any helmet with a 30mm slot on the side
- 31 SNR - Suits working with large machinery
- 26 SNR - Suits working with light, handheld machinery
Tested according to EN 352-3 at BIA, Germany (0121)