Wonday Base for ephemeris block, in light wood, m-shaped arches Wonday Base for ephemeris block, in light wood, m-shaped arches rim for pencil, dimensions: (L) 200 x (D) 150 x (H) 30 mm delivered without calendar block, hoop spacing: 19 mm, hoop diameter: 4 mm, length between the 2 hoops: 65 mm