magnetic cubes

Hi! I want to buy a magnetic 6x6 and 7x7. For 6x6 I would prefer a Shadow M, and I would pay 25 dollars for it. For 7x7, I would prefer a Yuxin Little Magic M, and I would pay 20 dollars for it (It is surprisingly cheap). If you have any of these cubes for sale, please PM me to work out the...