Thank you for viewing! Thanks to you, many customers have purchased from us, and we have a track record of high ratings. We are proud that our rubber is the most affordable and has a high holding power! The photo shows the KUN rubber after replacing the deteriorated one. The tubes are made of American rubber (raw rubber). Sold in sets of 4. If you would like to purchase multiple sets, please let us know in the comments before purchasing. This product is for 4/4 size Replacement rubber for KUN old type claw (not genuine). *It is unknown whether there are genuine products. We do not know if it is suitable for other fractional sizes or shoulder rests from other manufacturers. If the rubber deteriorates, your precious violin may slip and fall, so we recommend replacing it early. It is slightly longer or cut just right, so please cut off any excess with scissors. We will ship by regular mail, but we are not responsible for any postal accidents. (Regular mail is not delivered on weekends and holidays) Due to the post office's circumstances.