These spacers maintain the proper size gap even when the adjacent wall is undercut. The V-shape rests against the face of the plank to prevent the spacer from tipping. The two ends have different thicknesses, one at 3/16 inch and the other at 1/4 inch for various manufacturer's specifications.
U-shaped design won't tip over in the gap
3/16" wide on one end, 1/4" on other end for various gap sizes
10 spacers per bag