The heading is laser cut from 4 and 6mm birch plywood board. The ring itself is 6mm thick.
The size of the ring itself is selectable, available in 18 sizes from 15.3mm through 22.3mm inner diameter (US 4½ - US 13). The ring simply sticks into the middle of the heading. Sides of the ring is untreated, the outer curved surface is painted to black.
- diameter of heading: 25mm (1")
- thickness of heading: 4 and 6 mm (3/16" and 1/4")
- diameter of the ring: selectable
- thickness of the ring: 6mm (1/4")
- weight: ~40g