50 Pieces Of Lovermusic'S Black Dia 12Mm Rubber O Ring Bumper Stopper Trumpet Features: 1.Mainly made of high quality rubber, the product is made of good material, strong and durable, not easy to damage, easy and fast to use, long service life. 2.Excellent craftsmanship, good use effect, is a good replacement, replace the old and broken products, does not affect the original use of the instrument effect. 3.Used to stop the tuning tube blockage, to avoid noise, to provide good results for the use of trumpet, to ensure the stable use of the performance process. 4.The number of products to meet the needs of your daily life, the product is small, light weight, easy to carry with you, you can take out at any time to use when needed. 5.Easy to use and install, without too many complicated installation steps, according to their own needs to use the installation, replacement is fast and convenient. Suitable for trumpet, cornet, with good use effect. Specifications: Material:Rubber Color:Black Size:12x1mm/0.47x0.039Inch(Diameter x Thickness) Weight:3g Package include: 50 x Trumpet Cornet Rubber Bumper O Ring Product Features Mainly made of high quality rubber, the product is made of good material, strong and durable, not easy to damage, easy and fast to use, long service life. Excellent craftsmanship, good use effect, is a good replacement, replace the old and broken products, does not affect the original use of the instrument effect. Used to stop the tuning tube blockage, to avoid noise, to provide good results for the use of trumpet, to ensure the stable use of the performance process. The number of products to meet the needs of your daily life, the product is small, light weight, easy to carry with you, you can take out at any time to use when needed. Easy to use and install, without too many complicated installation steps, according to their own needs to use the installation, replacement is fast and convenient. Suitable for trumpet, cornet, with good use effect. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!