The Crumbler Tumbler Quilting Template Ruler by Miss Rosie's Quilt Co ~ 3 inch to 5 inch Solo Cups The perfect tumbler to work with different size strips. Markings to help cut tumblers in different widths. A center line to help cut side pieces and seam allowance markings to help with fussy-cutting. Instructions on how to line up the templates for piecing. Guidelines for cutting side pieces and fussy-cutting.