I’m not sure I fully understand what you’re asking. I’ll do my best to help though…
I’m assuming you’re looking for parts for a classroom. I believe there is a classroom kit, located on the vex website, I don’t know too many details about it but I belive it comes with parts for a clawbot. That’s a robot running a differential drive with two rubber traction wheels and two omni wheels, powered by two motors, with a boom/arm powered by one motor, and an end effector powered by one motor.
In my experiance these bots are great for your average highschool class, but those of us who are more involved with robotics might want a V5 Inertial sensor (an Imu, which constists of a three axis accelerometer and gyro), to do turns. I am not sure whether a inertial is included in new class room sets you may need to buy it seperately. From my knowledge, vex doesn’t have a three axis arm for sale, but it would be easy enough to build yourself.
Assuming this is for a class, I have some fun project ideas.
Chapter 1: How to drive forwards
Chapter 2: How to drive forwards a distance
Chapter 3: Add math to convert inches to degrees
Chapter 4: PID? (Kind of a step up in skill but useful)
Chapter 5: Turns
Chapter 6: Using trackwidth and wheel revolutions to calculate angle or desired left and right travel
Chapter 7: Arm and Claw code
Game 1: Capture the flag