Creative Grids Cat's Cradle XL Tool RulerDouble your fun by creating two Cats Cradle XL units from each set of squares and rectangles. Trim the blocks with the Cats Cradle XL Tool to create perfect triangle blocks without ever cutting a single triangle! Create 8 different finished sizes, ranging from 4 1 2 to 8 inches the cutting requirements for each is printed right on the tool! Need smaller units? The Cat's Cradle Tool (Item CGRDH1) creates six different finished sizes from 1 1 2 to 4