An element  is known a strongly nil* clean element if a=e1 - e1e2 + n . where e1. e2  are idempotents and n is nilpotent. that commute with one another. https://www.alarecre.com/Disney-The-Nightmare-Before-Christmas-Lock-Shock-and-Barrel-Art-AirPods-Pro-2nd-Gen-Skin-p101716/