S2U13-302 Fits 6mm & 8mm Cymbal Stand Posts. Elimates the Wing Nut to secure your cymbals on your stands. Felt Washers are optional. TheNo Nuts Cymbal Sleeves are produced with a super tough, yet flexible material, squeeze fit over the cymbal stand posts, no threading required. Place your cymbals over the sleeve and you are ready to go. Lift the cymbals off and pack the sleeve away with the stand at the end of the gig. NNCS-R