Mini Rope and Wood Puzzles _ Bundle of 3 Moderate Level _ Bonus Twisted Nail Puzzle Remove the Chrome Ring from the Wood and Rope Puzzles. Bundle of 3 mini Rope and Ring Brain Teaser Style Puzzles. Each puzzle is a different design. Bonus Twisted Nail (Separate the 2 Nails) Puzzle. Mini Size puzzles measure approximately 2.75 inches wide and 3 inches tall.