Nagaoka Audio Made In Pack of Insulators, Japan, 4, INS-SU01

Ruby + Stainless Steel audio insulators combine ruby balls with metal, tightening the low frequencies in particular and improving clarity, resolution, and sound image positioning in the mid- and high frequencies. When the product is installed, part of the ruby material is visible, and its color changes depending on the light, giving it an even more luxurious feel with the contrast between the metallic luster and the ruby luster.