Yes, it is possible to install an EA universal binding on various types of skis such as single skis, old telemark skis, etc. However, it is important to check the installation instructions provided by the ski manufacturer regarding the placement of the binding. Additionally, make sure to use the appropriate screw length and follow the binding installation instructions from the package. Take note of the ski's width, and if necessary, use the OAC Heel Guide on narrow skis.