The Fractional line of TSLOTS suits small and large applications. There are two series: the 10 Series and the 15 Series. The 10 Series consists of modular TSLOTS with 0.255-inch slot width. The slot width on the 15 Series, which are also modular to each other, is 0.322 inches. Once you have engineered blueprints for a structure, you can use the parts in the series of your choice to turn your plan into a reality.