I am looking for some measurements I have the A275 device similar to https://www.houseofdenial.com/colle...es/products/steel-hod-s77?variant=72864169985 I am looking at the following device https://www.houseofdenial.com/colle...jts-s213-chastity-cage?variant=32003006300221 to see if it is more comfortable. Does anyone know the gap between ring and cage for this model with both 45mm and 50mm ring? Also does anyone know if the cage from the a275 with ergonomic ring is compitable with this round ring?
Go for the circular one. The ergonomic one only makes sense if it is tight fitting and the cage is erected pointing up which is not the case at all and can painfully press on your vas deferns. It also greats a slightly larger escape gap opportunity at the bottom.
These two models are not compatible. The steel JTS ones are mostly interchangeable also between ergonomic and round rings. They steel JTS ones are not compatible with the S77/a275. They have different posts.