Riser Block, Compatible Table Hole Size 5/8 in, Compatible With Buildpro Welding Table, Features Mount a BuildPro Plate to the Side or End of the Table, or to Join Tables Together, Holding Capacity 500 lb, Overall Height 10 in, Overall Length 2 in, Overall Width 2 in, Product Type Heavy Duty Riser Block, Work Surface Pattern 5/8 in Hole Every 2 in