VEXpro VersaFrame Tube, C-Channel and Angle Stock - VEXpro 217-4104, A 59in. length of 1 x 1 x 0.1in. pre-drilled aluminium tubing from the VEXpro VersaFrame range.VEXpro VersaFrame Stock is a construction system that allows teams to build an upper frame in whatever configuration they can imagine.Pre-drilled holes on a standard 1in. pitch are designed to be used with #8 screws and 5/32in. rivets, and can be easily drilled out for larger hardware. No need for precision fabrication capability - with just a saw and a drill, any team can build light-weight world-class frames.The VersaFrame stock range is lightweight and more than strong enough for most FIRST ® Robotics Competition applications. VEXpro 217-4104 VersaFrame 1\" x 1\" x 0.100\" Pre-Drilled Aluminium Tube 59\" Long