Robotics Invention System, Version 2.0

What there is most of

• Technic Bush · Light Gray×40
• Technic Pin with Friction Ridges Lengthwise and Center Slots · Black×24
• Technic Pin without Friction Ridges Lengthwise · Light Gray×24
• Brick 1 x 2 · Black×20
• Brick 2 x 2 · Black×20
• Plate 1 x 2 · Light Gray×20
• Technic Bush 1/2 Smooth with Axle Hole Reduced · Light Gray×18
• Technic Axle Pin without Friction Ridges Lengthwise · Light Gray×16
• Technic Pin 3/4 · Dark Gray×16
• Brick Sloped 45° 2 x 1 with Bottom Pin · Black×12
• Technic Brick 1 x 2 [1 Pin Hole] · Black×12
• Plate 1 x 4 · Light Gray×10
• Plate 1 x 6 · Light Gray×10
• Technic Axle 2 Notched · Black×10
• Technic Brick 1 x 4 [3 Pin Holes] · Black×10
• Brick Round 2 x 2 with Axle Hole · Black×8
• Plate 1 x 1 · Light Gray×8
• Plate 1 x 8 · Light Gray×8
• Plate 2 x 2 · Light Gray×8
• Plate 2 x 2 Corner · Light Gray×8

The twenty most numerous parts, longest bar first. Start a checklist to see all 143 part types and tick them off as you find them.