Need the best, most versatile TREYs to store rivets or other fasteners? Molded from thermo plastic rubber, this is the TREY you're looking for, with curved bin bottoms that make it easier to remove parts. Crack and chemical resistant, the eight-bin TREY has clear plastic spring-loaded lids that shut automatically. Increase its versatility by adding inserts that divide each bin. Folding handle makes TREY stackable. TREYs are grey in color.