I take it you mean this.... http://www.clubfem.com/mcd1.htm I've not seen it before. it's a good price. Not sure how secure it would be though, looks quite easily defeatable by the vibrator method. Hopefully someone will come along whose had experience with it.
We've had a couple of them, not up to much I'm afraid to report, too tight and you get edema(I'm uncut) too loose and it just slips off...... OK for a play session for those not into pain, but we much prefer the KTB with Stainless Steel staples as the inner for that type of thing.....