These are a Christmas gift that we have had an eye on for several years. The engineering behind these is stunning. We have shopped with Grand illusions many many times. Amazing quality. Customer services. Just fantastic. Can’t praise them enough. So excited when the emails come with clever gizmos and gadgets and brilliantly clever videos to watch.
Very nice and high quality product.
Purchased these for my mathematician father as a gift. He loved them! Very well made and heavy, and great size.
Fascinating. Quality product.
Pensavo fossero più piccoli invece sono belli grandi, una piacevolissima sorpresa!
Great find for for lovers of maths!
If you have any love of geometry or just fascinating items in general, these are just amazing.
A great gift.