1:64 3D Printed Semi Truck Angled Back 9" Exhaust Stacks Pair of 2 for DCP, First Gear, Ertl, Speccast and More. Universal fit. May require modification before use. Unpainted and printed in standard gray resin. Measurements are roughly 53.2mm High, pipe diameter is 3.6mm. May require minor preparations before paint such as sanding or filing. Combined shipping available at checkout. --Proudly designed and made in the USA!--