420 Pressed Octagon, 1 or 2-hole

1-hole: 20mm, 50mm

2-hole: 12mm, 14mm, 16mm, 18mm, 20mm,  22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm

3-hole: 22mm

4-hole: 18mm