I have 3 male chastity devices are not the correct size for me. Only wore it to try it on and didn't work. 1. KTB for Wolf MEO 2 in diameter. (two of them) Paid $150.00 asking $100.00 each plus shipping charges. 2. Pacha from Wolf MEO base ring is 1.75 in. Too small for me. Asking $100.00 All are high quality. For more info on these devices check their site: http://www.meo.de Ron