I've created a custom detachable hook for a bell. Perfect for those who want to play with their left hand, or for those interested in Clark Terry. The hook and a processed ring are crossed and crimped with a mechanical joint. Solder was then applied to secure them. To prevent scratches on the instrument, the exposed metal has been protected with transparent heat-shrink tubing in key areas (see photos 4 and later). Please refer to the photos of the Bach 37 bell for an example of how it attaches. Due to the design of the bell flare, the attachment position may vary, so you may need to adjust it yourself with cushioning material. Adding parts to the bell can affect the sound and playing feel. It seems to make the sound clearer, improve monitoring, and widen the dynamic range. The response in soft passages is also good, and I don't feel any particular harshness. The position is just right on the Bach 37 bell used as an example. Installation is easiest on the side of the crook where the tubing is slightly flattened and narrower. The instrument itself is not included in the sale.