I was hesitant to buy these based on the groves in the top of them. I thought they might look bulky or even maybe a bit gaudy. The reviews were all good about fit which is ultimately why I bought them - I needed something that I was sure was going to fit so I can complete the guitar I am working on and sell it. These were a bit more expensive than I wanted to pay but I bought them anyway - WELL WORTH THE COST. I put them on a 1998 Epiphone Les Paul Studio Deluxe and they fit perfectly. Not only did they fit perfectly on the post, the had enough depth to sit almost flush with the body which actually looks much better than the original knobs that sit up higher on the post and off the body. They look high quality and they feel high quality and the notches in them at the dial numbers throw off almost a 3D effect which looks great against the transparent black finish on my guitar. No complaints at all - great purchase - highly recommend!