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This is a 1:100 scale Saturn V Interstage. It also contains the corrugations from the top of of stage 1 as well as the corrugations on the bottom of the second stage and all the appropriate conduits. Unlike the other similar part offered on the this site, this part slides over the BT-101 body tube. To faclitate this 'sliding' feature, the part was scaled up 3% to take into account the thickness required for structural integrity of the part.