A 1.5" version of my popular 1.625" header mockup kit
Each bend block is equivalent to a 22.5deg pc.. So 4 pcs will give you a perfect 90deg bend.
They also have angle location marks/notches every 30 deg to help keep track of your compound bends, and make it easy to re assemble and mark once you start tacking with real stainless or steel piping.
This kit package comes with 1.500 Diameter tubes with centerline bend radius of 2", 2.5", 3" and 4", 1" straight, and a 1" straight with closed end for mounting to a header plate.
Have a snap attack!