B.W.T...Link
by the students, for the students
Total extension length of number of stacked slides (BL-400A-2M) = 283mm X # of stacked slides
e.g. for 4 stacked 16" slides, the total extension = 283mm X 4 = 1132mm.

BL-300 4-stack Slides used by FTC Team 18225 High Definition