8-sided spacers allow for 1/4, 3/8, 1/2, 5/8" expansion gaps along walls and 1/2, 3/4, 1, 1-1/2" expansion gaps for thresholds between rooms 
Gaps between flooring and vetical surfaces allow for expansion and contraction during climate changes 
For use with floating and glue down vinyl plank, laminate flooring, engineered and solid hardwood and thresholds