Lot of 43 brass I-beams. A little tarnished from age. The height of the I-beam is 4.5mm, the bottom where it contacts the ground or the bottom of the track is 4mm and the top is 2.5MM the length of the beam itself is 914.4mm or 36". The lot weighs with packing a bit over 7lbs. If the price sounds high just think about most are priced at 6.00 and up for one 12" piece so, you are talking around $800.00. No returns or refunds as is.