Is there any way to get extra tubing? Mine was cut short

Yes, but be willing to pay for it. Unless you catch the error within 30 days of purchase (not receipt), they won't stand behind their product at all.

What kind of oil can be used as a replacement for the original?

To be clear, by "oil" I assume you are referring to the lubricant that came in a small bag. As Dohn Riley pointed out, some of the answers to this question are confusing the oil with the "hydraulic fluid" which is water in this case. You can buy a replacement "oil bag" from the company for $1 plus shipping. I suspect that the oil they use is a kind of mineral oil. It has to be something that is safe for kids to get on their hands etc. It looks and feels like drug store mineral oil but is more viscous.

Can you add the usb pack to this model

This robot arm is the new model which is hydraulic and it does not require USB. The hydraulic arm uses regular water to operate. The usb was used in earlier versions of the robot arm.Let me know if that helps.

Item Dimensions	9.53 x 16.35 x 12.7 inches
Item Weight	2 Pounds
Theme	Robotics

Hydraulic Levers

Description

Specifications

Common Questions