Hello, i'm looking for new cubes for my small collection and it's time for two big ones, the 6x6 and the 7x7, i don't care about the best ones because i want cheap and good budgets, i have three brands in my mind, Qiyi Qi series, Moyu Meilong series and Yuxin Little Magic series. It could be good to complete Qiyi Qi series, i have 2x2-5x5 and i think this cubes are good, this cubes feel good in the hands, there no small nor big, fits good for my hands and i like how they moves, but i'm open to go for Meilong or Little Magic, or maybe something else. What i'm asking for is for good bugdets, my top price is 15$ for the 7x7, is not important if the cubes are magnetic or not, i don't want problems with very small egde pieces so i don't like mini cubes, for example the 5x5 Qiyi have a good size so the 6x6 and 7x7 have to be bigger, so that's all, i'll wait for your recommendations. Thanks in advance.