Features:Rubber material, high flexibility, comfortable wearing feeling, tear-resistant and durable.Suitable for oboe clarinet instruments within 1.45 - 1.75cm metal thumb rest.Provides extra thumb rest and protects your instrument and hands, alleviating the fatigue of long-term playing.Special shape design fits your metal thumb rest very perfectly.Wonderful term to rest your thumb and bring you better playing performance.Specification:Condition: 100% Brand NewMaterial: RubberColor: BlackQuantity: 1PcSuit for Oboe Clarinet Instruments Applicable Metal Thumb Rest Size: Approx. 1.45 - 1.75cm / 0.57- 0.69inchDimensions(L x W x H): Approx. 38 x 22 x 28mm / 1.5 x 0.87 x 1.10inchWeight: Approx. 9gPacking List:1 x Thumb Finger Rest