Genuine cheek pads for Arai RX-7X. Size: 57-58 standard equipment 20mm - Brand: Arai - Color: Navy - Material: Mesh and cloth - Features: Breathable design Thank you for viewing. These are the standard 20mm cheek pads, but they have been modified with speaker holes for an intercom. Speakers with a diameter of 40mm and a thickness of 10mm can be accommodated. Velcro is also attached to the bottom of the holes. The holes were carefully carved out with a rotary tool. However, please understand that this is amateur work, so there may be some imperfections. (I was using cardoEDGE speakers.) Otherwise, they are as they should be. They can be properly installed on an RX-7X. How about these for those who are struggling to install speakers or who have found them to be painful on their ears? Please understand that this is a modified product before making your decision.