Editorial Review Graph Tech Tusq "IOS" compensated saddles for vintage Tele. IOS (Increased Oscillation and Sustain) series saddles open up the sound of your Tele by changing the contact point of the string. The result is higher string excursion at the contact point allowing for a fatter, more open sound with more sustain. Includes stainless intonation screws, springs, and allen wrench. Measurements Thick Length Height E to E Inches 0.3 0.852 0.3 2.076 MM 7.62 21.64 7.62 52.73