A Bulldog clip combined with a suitable piece of board makes a clipboard. What size is a standard bulldog clip? Compare with similar items. This item X-ACTO #1 Bulldog Clips, 1.25 Inches, Box of 36 X-ACTO #2 Bulldog Clips, 2.25 Inches, Box of 36; Customer Rating: 4.8 out of 5 stars (807) 4.7 out of 5 stars (121) Price: