Hi Peter, Eric and I have finished packing your crate of parts for the N-Det upgrade. Your box contains the following items: 8 - Al.Positioning tubes. 4 - 12" Al. channels 1 - small cardboard box of associated hardware, fasteners, tap drills, etc. Crate dimensions are 32"H x 17" x 54". Wt. = 330 LBS. Thank you, John Blackburn