Our large vertical 18 x 24-inch clipboard fits Arch 3 size paper and is made of medium-density fiberboard (MDF) for a lightweight design great for daily use. This clipboard is ideal for larger tasks, score taking at sporting events (baseball, basketball, soccer, softball, etc.) drafting large projects or simply having a flat place to write. The horizontal layout of this clipboard allows a large writing area and can be used as a lapboard while seated. This MDF clipboard comes standard with two sturdy paper clips to secure your paper, notes, catalogs, score cards and more!