This Quilting Travel Kit by Omnigrid is great for small projects, classes, travel and quilting retreats. The kit contains 3 rulers and a small cutting mat:
1″ x 6″ Ruler (2.54cm x 15.24cm)
4″ x 4″ Square Ruler (10.16cm x 10.16cm)
6″ x 6″ Square Ruler (15.24cm x 15.24cm)
8″ x 11″ Cutting Mat (20.32cm x 27.94cm)