Important: NOT UNIVERSAL — check size and fit before buying. Measure your microwave's existing coupler or compare to product dimensions to ensure compatibility. Purpose and function: replacement turntable coupler that restores the connection between the microwave motor and the glass turntable so the tray rotates properly. Use it to old, cracked, worn, or missing couplers. Compatibility: fits most microwave ovens as a direct replacement for worn or broken turntable couplers. Confirm fit against your oven's original part before . Material and durability: made of temperature PPS (polyphenylene sulfide) for heat resistance and a long service life under repeated microwave use. Performance benefits: Restores smooth, reliable rotation of the turntable for even heating. Reduces noise and wobble caused by degraded or damaged couplers. Durable construction minimizes frequent replacements. Typical use scenarios: 1. Your microwave glass plate no longer turns — the coupler to restore normal operation. 2. The original coupler is cracked or worn and makes noise or causes wobbling — swap in this PPS replacement to stop the issue. 3. Maintenance or spare part for service technicians, rental units, or household kits to quickly get a microwave back in service. Replacement advice: confirm the coupler's dimensions and shape match your microwave's original part. This product is intended as a direct replacement for old or broken couplers and is not a onesizefitsall item.