4-in-1 design spaces 3/8 in, 1/4 in. and 1/2 in. expansion joints Designed to evenly space 1 in. thresholds For vinyl, laminate and hardwood floors For glued and click lock vinyl, laminate and hardwood floor installations Custom-manufactured from plastic for added durability Effortless provides 3/8 in., 1/4 in. and 1/2 in. expansion spacers as well as 1 in. thresholds Rinse and reuse with your next installation project