Ugears Stem 2-In-1 Arithmetic Kit Metal Earth Dazzling desktop piece powered by

Dazzling desktop piece powered by physics and enhanced with batteriesEach of the rings spin independently

terminal caps

the cuttlebone

whatever the occasion

Ugears Stem 2-In-1 Arithmetic Kit Metal Earth Dazzling desktop piece powered byAddiator size: 21. 5*11*2. 3 cm Multiplier size: 24. 8*25. 5*4 cm Number of components: 117 Estimated time for assembly: 2. 5 hours UGEARS Arithmetic Kit, part of UGEARS STEM Lab collection, consists of two ready to assemble models: A Mechanical Addiator and a Mechanical Multiplier. Assemble the Arithmetic Kit and discover how the Mechanical Addiator and Mechanical Multiplier work. The model kit comes with a QR code to the study guide about the