Galvanised steel accessory kits for cantilever telescopic gates. Accessories designed to guarantee maximum performance in terms of functionality and durability. The kit takes advantage of the exceptional strength of the classic cantilever trolleys combined with the Fac telescopic system to reduce the footprint during opening, without the need for a rail on the ground thanks to the cantilever system, allowing maximum passage clearance. The kit reduces the footprint beyond the opening thanks to the two telescopic leaves, and also solves problems with uneven ground, snow or gravel on the ground, which would prevent a classic sliding gate from opening and closing safely.