This is a commercial version of Andrew Cormier's Teraminx, built by "mf8" and distributed by Mefferts. It is slightly larger than the handmade puzzle. Also Andrew's original turns smoother. But overall a very nice and well-working item.
When buying it from Mefferts you'll get the fully assembled puzzle plus two sets of stickers, means: you have to do the stickering job yourself. This is a tiring job, as there are 12 x 61 = 732 mostly very tiny stickers to attach. Comes with two sets of stickers.
Size: Height 12.5cm, pentagon edge length 5cm