Durable weatherproof barrier for long service life: robust barrier protects against UV rays, rain and wind without cracking. Quick adjust brackets simplify repositioning, and reinforced edges resist permanent deformation for reliable long term performance. Easy to use and manage access: optimize PET movement via 4way handle adjustments and instruction icons. Easy access permissions when defining restricted zones to ensure smooth locking function and quick visual confirmation for convenient access control. Broad compatibility for versatile use: optimised for homes, garages or conservatories. The quick install system fits moderate waist sizes from wood, PVC or metal doors. Generally appropriate standard door frames that allow adaptable placement without structural changes. Easy installation with adjustable tunnel depth: this cator door features an adjustable tunnel depth for the adjustment flexibility and no tool installation with clear stepbystep. Practical use scenarios: In a family home, restrict pet access to certain rooms (for example kitchen or study) while allowing easy passage to living areas, using defined restricted zones and clear visual indicators. In a garage or workshop, separate living space from the work area while still permitting pet movement, thanks to the weatherproof barrier and adjustable tunnel depth for a precise fit. In a conservatory, maintain climate control between indoors and outdooradjacent spaces, enabling pets to move where permitted and keeping other areas protected.