I never knew this model with the "floating"spikes was so easy to fold. I thought it required glue, but it is not needed! Putting it together is a bit of a hassle but still relatively easy. The locking is not great but when the first two complete 5 module spikes are ready, the locking is not so bad.
Magnificant design by Miyuki Kawamura with close resemblance to a Medial Rhombic Triacontahedron and the Daniel Kwan's SSMART Dodecahedron.