This is a control pendant for a TinyG G2 CNC machine. Parts: 1 x DPDT 16mm E-Stop - http://www.galco.com/buy/IDEC/AB6M-V2-R 1 x Green 16mm Momentary Button - https://www.amazon.com/gp/product/B00DUYQAZ2 1 x Red 16mm Momentary Button - https://www.amazon.com/gp/product/B00DN7LKOW 1 x RJ45 Modular Jack - https://www.amazon.com/gp/product/B00CLVAJCK This is part of an overall TinyG G2 CNC control system: Electronics Enclosure: http://www.thingiverse.com/thing:1703914 Control Pendant: http://www.thingiverse.com/thing:1703922 Junction Box: http://www.thingiverse.com/thing:1703927