1、Rubber material, high flexibility, comfortable wearing feeling, tear-resistant and durable. 2、Suitable for oboe clarinet insuments within 1.45 - 1.75cm metal thumb rest. 3、Provides exa thumb rest and protects your insument and hands, alleviating the fatigue of long-term playing. 4、Special shape design fits your metal thumb rest very perfectly. 5、Wonderful term to rest your thumb and bring you better playing performance. Features:br/ul class=" list-paddingleft-2font-family: Arial;"Rubber material, high flexibility, comfortable wearing feeling, tear-resistant and durable."font-family: Arial;"Suitable for oboe clarinet insuments within 1.45 - 1.75cm metal thumb rest."font-family: Arial;"Provides exa thumb rest and protects your insument and hands, alleviating the fatigue oflong-term playing."font-family: Arial;"Special shape design fits your metal thumb rest very perfectly."font-family: Arial;"Wonderful term to rest your thumb and bring you better playing performance.br/Specification:br/ Condition: Brand Newbr/ Material: Rubberbr/ Color: Blackbr/ Quantity: 1Pcbr/ Opening Thickness: Approx. 1.5mm / 0.05inch, 3.5mm / 0.14inch(Optional)br/ Suit for Oboe Clarinet Insumentsbr/ Applicable Metal Thumb Rest Size: Approx. 1.45 - 1.75cm / 0.57- 0.69inchbr/ Dimensions(L x W x H): Approx. 38 x 22 x 28mm / 1.5 x 0.87 x 1.10inchbr/ Weight: Approx. 9gbr/br/Packing List:br/ 1 x Thumb Finger Restbr/br/br/br/br/br/