Strong mattress support with 10 wood slats prevents sagging and increases mattress lifeAssembles easily in minutesPlastic feet protect your floors, 5 year limited warrantyNon-slip tape on the wooden slats prevents your mattress from movingPlease follow instructions for proper assembly. Numbers or Arrows must match on all four corners and holes aligned. Improper assembly will result in the slats being too wide and Part C being too short