Polymer covered springs that silence any noise from spring tension that would emancipate through pickups.</br>Absence of echo and other unitended noises usually caused by tremolo springs</br>Gives the guitar a tight?? cripser sound.</br></br>Product Description</br></br>Using a revolutionary new polymer to eliminate noise?? these German-made springs will silence any sounds resulting from spring tension that might be emanating through your pickups?? giving your tremolo-equipped guitar a tighter?? crisper sound. Especially at higher volumes?? you'll notice the absence of any echo?? reverb?? or otherwise unintended noise coming from your tremolo springs - ideal for studio recording. Sold in quantities of 3.</br><br/>http://www.amazon.com/gp/product/B00N23EL5C