My sons play trombone and they have a Snark Tuner and the stem broke so instead of having to buy a new one I made one and attached it to my kids Snark and it works perfectly! So much better than buying two new ones for $20.00. The black one was made on my Bambu X1C and the ice blue was made on my Prusa Mini. I did 100% infill and put supports on it. Enjoy!