The long pieces are ~8"x.25". The guides are ~3.75"x.25". Each player at a table is given 15 long pieces and 2 guides, so 30 of the long pieces and 4 of the guides form a set to play the scenario with.
Are the EWTs the size of Range 1 and Range 2 on the Range Ruler for the short and long pieces, respectively? That would be so very useful, if they are.