Bored of regular puzzles and want a harder challenge?<br><br> Solving jigsaw puzzles is a great mental exercise that engages the left and right sides of your brain at once. It's an effective mental workout for honing your logical reasoning, creativity, intuition, and short-term memory. However, to truly train your brain you're going to need a puzzle that's not too easy.<br><br> Why not try a puzzle that rewrites all the rules of puzzling? Make your brain work harder with a stunning yet difficult puzzle that uses no picture to guide you!<br><br> Take your puzzling skills to the next level with the Hanmadh Clear Impossible Iridescent Jigsaw Puzzle!<br><br> Solve a unique puzzle you can't find anywhere else. Our impossible puzzle features iridescent pieces that change color when moved or hit by light. Immerse yourself fully with no prints to distract you. No clues–only your skill and dedication to rely on.<br><br> The color-changing puzzle pieces are waterproof. They won't lose their sheen and transparency even if you accidentally drip water onto them. Each set has 100 jigsaw puzzle pieces that come together as a beautiful 10-inch circle. Frame it and display it in your home or office near a light source as a unique conversation piece or beautiful decor.<br><br> Our jigsaw puzzle pieces possess sleek and clean-cut edges, thanks to a high-precision laser. They fit together perfectly, with each piece coming together satisfyingly each and every time.<br><br> Still undecided? Here are more reasons to love our impossible puzzle:<br><br> Makes for engaging bonding time with friends and family<br> The puzzle pieces are 3mm thick and feel smooth to touch<br> The finished puzzle becomes an eye-catching piece of art<br><br> Sharpen your mind against a gorgeous yet challenging puzzle. Add Hanmadh Clear Impossible Iridescent Jigsaw Puzzle to your cart TODAY!<br><br><br>Great gift for puzzlers and puzzle lovers!