Talia Capo High Tension Tuning Kit (7-PIECE) Teflon These are Teflon fret pads. They are made of a harder material than the standard ones. There are 7 types of fret pads: 0 inch for classical guitars, and 7.25", 9.5", 10", 12", 15", and 16" for other guitars. You can buy it immediately if you have no questions. Thank you.