This universal microwave knob is a durable 3D printed replacement part designed to restore full functionality to microwaves with broken or missing control dials. The model features reinforced internal geometry, a strong grip-friendly outer surface, and precise tolerances for a secure fit on standard microwave shafts. Features: • Universal fit for most microwave models • Reinforced internal structure for long-term durability • Grip‑textured surface for easy turning • Clean, functional design optimized for 3D printing • Quick and simple installation • Ideal replacement for broken or worn-out knobs Perfect for extending the life of your microwave without buying expensive OEM parts. 36mm for shaft 6mm