Bifold closet pivot 3 (2-sized holes to fit over pivot lip)

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/3GYsdP5gNAY

Plastic cap (basically, a bushing) to replace the broken one on my outdated and no-longer-available, top pivot, spring-loaded, post/guide for a wooden folding door, which is about 30 years old as of 2018 (no retailer had a match for it, and no modern pivot/cap fits). The cap takes no weight, and is used only to guide the closet door through the top rail/track. The cap is hollow to allow it to be pl