Tropes and ordinary physical objects

I argue that a solution to puzzles concerning the relationship of objects a nd their properties--a version of the 'bundle' theory of particulars accord ing to which ordinary objects are mereological fusions of monadic and relat ional tropes--is also a solution to puzzles of material constitution involv ing the alleged co-location of material objects. Additionally, two argument s that have played a prominent role in shaping the current debate. Mark Hel ler's argument for Four Dimensionalism and Peter van Inwagen's argument aga inst Mereological Universalism, are shown to be unsound given this version of the bundle theory.