Easily create complex and iconic patterns on the Pop Out Projects patented Rocket Loom with these fun to use wooden accessories. (Loom is not included with these accessories) The patterning combs are interchangeable and make it easy and quick to create a whole range of weaving patterning with your Rocket Loom. There are two patterning combs available, PC2 is the 2x2 twill patterning comb and PC3 is the diamond twill patterning comb. With the 2x2 Twill Patterning Comb you can easily create herringbone, twill and houndstooth patterns, regardless of experience. This 2x2 twill comb also comes with a 12 page booklet outlining the different patterns, a little of their history, and 2 easy complete projects With the Diamond Twill Comb you can easily make a complex diamond pattern as well as zig zag patterns.