Robotics Invention System Upgrade Kit (1.5)

What there is most of

• Plate 2 x 2 Corner · Light Gray×8
• Technic Axle and Pin Connector Perpendicular · Light Gray×8
• Technic Axle 4 · Black×4
• Technic Beam 1 x 7 Thin · Black×4
• Technic Beam 3 x 3 L-Shape Thin · Light Gray×4
• Technic Modular Connector · Trans-Dark Blue×4
• Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] · Blue×4
• Technic Bush 1/2 Smooth with Axle Hole Reduced · Light Gray×3
• Plate Special 2 x 2 with 2 Pin Holes · Light Gray×2
• Rubber Band Small 13mm (Square Cross Section) · Black×2
• Rubber Belt Small [15mm ID] [Round Cross Section] · White×2
• Technic Axle 2 Notched · Black×2
• Technic Axle 5 · Black×2
• Technic Axle 6 · Black×2
• Technic Axle and Pin Connector Angled #2 - 180° · Blue×2
• Technic Axle Connector Ridged [with x Hole x Orientation] · Light Gray×2
• Technic Beam 1 x 3 Thin · Light Gray×2
• Technic Beam 1 x 5 Thin · Light Gray×2
• Technic Beam 1 x 9 Bent (6 - 4) Thick · Black×2
• Technic Beam 2 x 4 L-Shape Thick · Black×2

The twenty most numerous parts, longest bar first. Start a checklist to see all 25 part types and tick them off as you find them.