Material: FeltColor: YellowSpecifications and quantity Material: FeltColor: YellowSpecifications and quantity :( please refer to the following size and check your clarinet pad， does not guarantee each brand of clarinet are applicable)The 1st mat: 17.2mm ， 3The 2nd mat: 15.3mm ， 1The 3rd mat: 11.8mm ， 2The 4th mat: 10mm ， 11(The above dimensions are felt on one side of size. The size of one side with the word as in the following size)The 1st mat: 16.7mm * 3The 2nd mat: 14.57mm * 1The 3rd mat: 11.28mm * 2The 4th mat: 9.5mm * 11 Package: Package included: 17pcs Bb clarinet pads