Passive ReVO - Neon Pink DC04-03 4 is generally the standard

4 is generally the standard for smoothing planes

you will love using these shorter chisels

There are 3 projects with corresponding full size patterns in this plan pack

Ports: 2 ports - 4"

Passive ReVO - Neon Pink DC04-03 4 is generally the standardEveryones head and ear size is different, one size does not fit all. Pro Ears ReVO in Neon Pink, can make the difference for you! These NRR 25 passive ear muffs are designed from the ground up to fit smaller heads. All the same features you expect from Pro Ears passive hearing protection, but they provide a better fit for children and smaller adults this means better hearing protection. The ReVO Advantage is the great comfort and noise attenuation