Dimensions: Inside (dia.): 1.625", inside depth: 2.125", overall ht: 2.750", overall (dia):2.250". Fits the Following: AKG C535, CK4, D80, 90, 95, 125, 130, 190, 200, 310, 321, 330, 590, D3700, 3800, 3900. Audio-Technica ATM29, 31, 41, 91, AT801, 802, 813, 814, MB2000. Beyer MCE81, M260, 300, 400, 500, BM85,EM85,TGX20,60. E.V. N/D247, 257, 357, 457, 757, DS35, PL50, 60, 70, 77, 80, RE11, 16, 18, 50/B, MT200A, MC100, 150,300. Neumann KMS140, 150. Peavey Celebrity, p250. Sennheiser K6-ME65, MD21, 200, 400, 416, 427, 429, 511, 512, 515, 516, 735, MKE44. Shure SM48, 53, 54, 58, 96, 587, PE15, 75, 85, 86, BG3.0