10 Pcs Universal Microwave Oven Waveguide Covers, Cut-to-Size Mica Sheets | 150x120mm, Universal Mica Sheets, for Microwave Oven, Trim-to-Size, Waveguide Covers, for Home Kitchen, 10-pack

Small, inexpensive part that goes inside the microwave to prevent the arcing and vivid "lighting bolts" inside the microwave when the waveguide has baked on food or other damage. Impressive display of malfunction is easily and cheaply repaired. Don't replace the unit before trying this. The material supplies was larger than the origina but easily cut down to exact size. Measure twice, cust once.

Quality was a little better than expected. I could hold the sheet in my hand without fear that it would crumble. The only thing that went wrong for me was the inability to remove the little plastic pin which holds one side stationary, and two opposite corners are inserted into slots. SO, I had to cut a little bit of the sheet to make a slit to slide the slit sheet over the shaft of the plastic pin. (please don't kill me now, lol) I had read other reviews which said to use a brand new razor knife, etc. I used a nice pair of craft scissors. My only regret is that I was not careful enough in my measurements, and so I bent the corner of the sheet a bit much, and this weakened it at the bend. I was able to trim off the excess length of sheeting from my miscalculations, and everything fit very well after that. Highly recommend the product, great quality for the cost, I would buy this again if I ever needed to.

Worked great. Would recommend

Worked well, easy to cut with CNC router. Shaper origin, to the rescue.

I wasn't sure about this at all,but I was willing to try, to avoid replacing my microwave. It was super easy. I took the old waveguide out & traced around it on the new one. Cut it with scissors & put it in. I've had no more sparking. It's been several days. I got the universal piece so I didn't have to find the exact match. And I still have a spare if I need it. They could have been packaged more securely to prevent the thin cardboard from bending. Mine was not bent at all in a box with other items.

Saved me $100s. Cut my own works just fine.

While the product met description, giving only 3 stars due to damage upon receipt. Made of mica, a fragile material, the cover was sent in an Amazon brown envelope without any rigidity resulting in damage to the product. LUCKILY, I was able to eek out enough to fashion the piece I needed. Other than that, product was easy to cut with a craft knife with a very sharp blade.

Took off the old cover and used it as a stencil. Traced it onto one of the two provided squares. Cut it out with scissors. Used it to replace the bad one. PERFECT. 100% fixed.