Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.It is very suitable for the maintenance of Bassoon pipe, the irregularity of cork so that your different needs.4.Suitable for Bassoon, oboe, clarinet, piccolo, clarinet, saxophone.5.Made of high quality cork, durable, soft and lightweight.6.With good flexibility, sealing, noise resistance, abrasion resistance.Specifications:Material:CorkColor:Wood colorSize:Approximate:90x64x15mm/3.54x2.52x0.59in(LxWxT)Thickness:0.2-0.9mm/0.008-0.035inchLength:10-70mm/0.39-2.76inchWeight:5gPackage include:1 x Neck Cork Sheet