Sanding surface of 120 x 65 mm
Block of hard PVC, pins ensure the attachment of the sanding element.

Sanding surface of 210 x 105 mm
This hard block has a foam rubber layer of 6 mm thick. The attachment of the sanding element is ensured by two of them spring-loaded clips.
The two types of sanding blocks can be equipped with sandpaper, emery cloth or with abrasive nylon.