[Rinaldi 427]

The material is aluminum with honeycomb sandwiched between the pieces. 1 and half inch bore on cylinders and 12 inch stroke we go for the 12 inch bonus points. As said previously we can lift either 1 or 2 robots for total of 30 or 60 points. our bot weighs 117 pounds (picture is missing part 2 of arm and the electronics but total all "stuff" weighs 117.) and yes we have a full arm that can reach all 3 levels of scoring. our arm is quite stable and it doesn't shake at all.