The ASTROLABACUS puzzle in a bright Citrus four-colour configuration (purple, green, yellow, orange). Segments are arranged in the classic four-colour layout so the challenge matches the standard difficulty. Each puzzle is FDM-printed in ABS and hand-assembled; minor variations are normal for a craft piece. The mechanism articulates smoothly and is designed for regular handling. What you receive: one fully assembled ASTROLABACUS puzzle, ready to solve. Shipping: free tracked international postage....