Please be sure to read this. It has come to our attention that individuals are reselling items at inflated prices on Amazon. Due to the disregard for the original provider's desire to offer these at a low price, we have been requested to revise the prices. This is unfortunate. This is a cut-type cork sheet set for the maintenance of wind instruments and clarinets, and a joint cork set. 50 sheets of 100mm x 15mm x 2mm thickness Pre-cut to size, ready to use. Made from natural Portuguese cork, processed in Japan. Suitable for wind instruments and woodwind instruments. The only person in Japan who processed and manufactured cork for musical instruments has passed away. Items from major musical instrument manufacturers like Y used to be made with this product, and the items for sale are the same. This high-quality cork will no longer be available on the market, so this is the last of what we have. Professional specification. Commercially available cork often undergoes bleaching or has holes filled with powder, but natural cork retains its natural imperfections such as stains and holes, so please understand. Sales proceeds will be used for the protection of rescued cats. Please be sure to send a message. We will not do business with those who do not communicate via messages and will cancel the order. Instrument adjustment, maintenance, instrument workshop, wind instrument repair workshop, cork replacement, overhaul, wind instrument repair