♫Package Included: 36 PCS acoustic bridge pins, includes 18 pcs Ivory and 18 pcs black, you can choose different color to create personalized match. | ♫Standard Size: Total length 31.7 mm/1.25", length of post 26.7 mm/1.05", skirt/collar: 5 mm/0.2", diameter of the head 8 mm/0.31", apply to the vast majority of acoustic guitar. | ♫High Quality: Made by High-quality ABS Plastic, which is light weight, chemical stability and corrosion resistant, increases the string on the bridge vibration of the conductivity. | ♫Good Fit：Light weight is easy to use and compared to low profile pins, our guitar string pegs feature a pronounced collar for easy removal. | ♫ Wide Application: Can be applied to acoustic classical guitar, folk guitar, ukulele, Martin or Taylor, used to hold the guitar string in place coupling the strings firmly for perfect acoustic resonance.