In the Prime system, the side case and bottom case can be completely embedded into the floors. In this way, 20% more transparent area and view are provided compared to standard systems. The purpose of the Prime sliding system is to provide and connect the objective interaction between the indoor and outdoor environment. With the case being completely recessed into the ground, users are provided with a floor transition between inside and outside, and the sliding system is no longer an obstacle between indoor and outdoor space. With the steel bearings embedded in the case, it is possible to make wide and high sash up to 12 square meters. With its EPDM wick structure, air and water tightness and wind load resistance and thermal performance values are provided at a high level. The system allows to use glass up to 36 mm with its profiles with wall thicknesses between 1.8 mm and 2 mm.