Square tube end cap

I created this end cap for specialty square tubing that is called "100 wall" by my local metal store. It's a square tube designed to fit inside larger sizes (telescoping). This particular end cap is for square tube sized 1.25 inches O.D. with a 1.05 inch I.D. I printed it on an Ender 3 pro with black PLA. No supports required if you print it flat face down. The project I needed this for can be seen here: https://youtu.be/_gOCO4c4SAY