uxcell Speaker Passive Radiator Diaphragm for Subwoofers, 87x60mm, Pack of 4

Material: Rubber + Iron; Size: 87 x 60mm (L*W) Made of high-quality rubber, it is durable and practical. It is a low-frequency radiator diaphragm bass passive speaker for DIY use. It enhances bass and stereo sound, bringing you a superior stereo sound experience. It has high sensitivity and high resolution. It is easy to install.