An innovative opening system with completely invisible movement guaranteeing the best possible smoothness, without any type of noise or movements during opening and extremely soft closure. The peculiarity consists in the fact that with simple steps, the support that allows the activation of the stop can be added above the sliding door in such a way as to avoid any type of impact during the movement of the door. Lower wheels for better smoothness. The new lower wheels of our track have been designed with increased steel bearings and pins. The rubber coating increases the strength and smoothness of the wheels. Adjustment system - The invisible track Integra an adjustment system that allows you to obtain any type of adjustment: vertically and horizontally to compensate for any irregularities.