[Special shape design]- Special shape design fits your metal thumb rest very perfectly.[Rubber material]- The thumb rest cushion is made of rubber material, high flexibility, comfortable wearing feeling, tear-resistant and durable.[for oboe clarinet]- The thumb rest cushion is suitable for oboe clarinet instruments within 1.45 - 1.75cm metal thumb rest.[Wonderful term]- Wonderful term to rest your thumb and bring you better playing performance.[extra thumb rest]- The thumb rest cushion provides extra thumb rest and protects yourSpecification:Condition: Material: RubberColor: BlackQuantity: 1PcOpening Thickness: Approx1.5mm / 0.05inchSuit for Oboe Clarinet InstrumentsApplicable Metal Thumb Rest Size: Approx1.45 - 1.75cm / 0.57- 0.69inchDimensions(L x W x H): Approx38 x 22 x 28mm / 1.5 x 0.87 x 1.10inchWeight: Approx9gPacking List:1 x Thumb Finger Rest