My girlfriend and I love restraints, and these were no different. We usually have no issue with putting her legs up for deeper penetration, but the links allowed me greater control during penetration.
The cuffs are sturdy, and have a soft foam lining that make them comfortable to wear. The strap between the cuffs can be un-clipped to allow the user to put them behind the back during missionary style penetration which allows the wearer to rest their legs on their partner's back.
Overall, what I found most arousing was that the strap between the cuffs allows the wearer's partner to hold onto the strap for greater control. Not only did this allow me to improve penetration by pushing the cuffs back, but it also provided new positions by pushing her legs to either side.
These cuffs are great for increasing penetration, but also for light bondage play and for adding an additional possibilities in the bedroom.