🎢 Build, Play, Display: The Ultimate Puzzle Experience! Enjoy seamless assembly with precision-cut parts—no glue or tools required! Perfect for birthdays and holidays, this puzzle is a unique gift that sparks joy. Transform your home or office with a stunning, handcrafted decoration. Dive into a 254-piece mechanical marvel that challenges your creativity! Craft your way to relaxation with a rewarding building experience. Waterwheel lifter No glue/tools 254 pcs The ROKR3D Wooden Puzzles Marble Run Set is a 254-piece DIY mechanical model kit designed for adults and older children. Featuring a waterwheel lifter and funnel track, this puzzle requires no glue or tools for assembly, making it an ideal gift for creative minds. It promotes logical thinking and coordination while serving as a unique decorative piece once completed.