These are a lot of fun, the . Hours of entertainment for the brain from #PLAYWIN. https://www.amazon.com/Playwin-Collection-Zongzi-Megaminx-Pyramid/dp/B010N111KS. I like a little challenge every now and then and these were the perfect level of skill for me. Very easy to move the tiles and no sticking. I haven't solved them yet, but I'm definitely not bored with them. I was grew up playing with a similar puzzle cube and I remember moving the stickers around to look like I had solved it. LOL! I promise not to cheat with these tho...Who knew a puzzle cube would have such great effect on someone? Great product for all ages and will make great gifts for the kids in my family. 5 STARS, bright stars!