Circle Mazes Puzzle book high demand low competition products on Amazon. Interior with Solutions for KDP Business 100 % formatted and tested for KDP Ready to upload on Amazon KDP. SPECIFICATION: Dimensions: 8.5×11″ paper * 2 PDF File * 1 PNG * Size 8.5×11 * 50 Puzzles * 100 Pages * All of content is New generate * No Duplicate content