Includes,

• 2 x 76162-2 - 6mm x 432mm D-Shaft (2 pack)
• 2 x 76161-6 - 6mm x 96mm D-Shaft (6 pack)
• 2 x 76160-6 - 6mm x 70mm D-Shaft (6 pack)
• 1 x 76159-6 - 6mm x 35mm D-Shaft (6 pack)
• 1 x 76303-2 - Coupling 6mm ID D-Shaft, 12mm OD (2 pack)
• 2 x 76308-6 - Shaft Spacer Plastic 6mm ID x 10mm OD x 20mm L (6 pack)
• 3 x 76304-6 - Collar 6mm ID D-Shaft, 12mm OD (6 pack)
• 2 x 76306-24 - Shaft Spacer Plastic 6mm ID x 10mm OD x 2mm L (24 pack)
• 2 x 76305-24 - Shaft Spacer Plastic 6mm ID x 10mm OD x 1mm L (24 pack)

The SR-Hover Self Balancing Robot from Studica Robotics is a pre-assembled, programmable WiFi robot ideal for teaching PID (Proportional–Integral–Derivative) controller skills. It includes a STM32 MCU with a Stepper Motor Driver Board, and Proportional–Integral–Derivative controller (PID).  With its built-in wifi-camera, it can be controlled using iOS/Android apps and with a PC through coding. This robot teaches more advanced robotics with an accelerometer and vision. The SR-Hover is recommended for high school and college level robotics and controls programs.