Feature: 1. Vibration Absorption: Carbon fiber material provides excellent vibration absorption for the CD tuning mat, which improves the CD optical head reading accuracy of the signal and reduces the error rate. 2. HIFI CD Mat: Mid range frequency fullness, low frequency extension, carbon fibre CD tuning pad can improve the high frequency burr, sound quality is clearer and purer, listening more easily. 3. Suitable for Various CD Models: Carbon fiber CD tuning mat thickness is 0.2mm, the centre hole diameter is 15mm, the size is appropriate and suitable for various CD models, easy and convenient to use. 4. Premium Material: Full of toughness, CD tuning pad is soft and comfortable, woven with premium carbon fiber material, sturdy, long term use without deformation, you do not need to replace often. 5. Lossless Sound Quality and Low Distortion Rate: Using carbon fibre CD tuning pad has no loss of sound quality and low distortion rate, keeping the original HIFI music and enjoying the great listening experience. Specification: Item Type: Carbon Fiber CD Mat Material: Carbon Fiber Center Hole Size: Approx. 15mm / 0.59in Thickness: Approx. 0.2mm / 0.01in. Package List: 1 x CD Tuning Pad