Gibraltar SC-20B Rubber Cymbal Seat Short Post Rubber Cymbal Sleeve - Short This cymbal sleeve consists of a rubber cymbal seat with a short sleeve on a rubber-flanged base with an 8mm nylon sleeve to protect your cymbals and enhance their sounds This cymbal sleeve consists of a rubber cymbal seat with a short sleeve on a rubber-flanged base with an 8mm nylon sleeve to protect your cymbals and enhance their sounds