Extendable Window Bars | 4 Square Bars | 630-1100mm Wide x 420mm High (D) retractable security door it helps reduce the risk

it helps reduce the risk of pry attacks and door-frame separation while maintaining a discreet appearance around entrance locksets

and public facilities

and long-term outdoor use

The 4-square-bar design provides additional coverage while maintaining flexibility across different window openings

Small offices and retail spaces

Extendable Window Bars | 4 Square Bars | 630-1100mm Wide x 420mm High (D) retractable security door it helps reduce the riskExtendable Window Bars 4 Square 630 1100mm (D) Top Features Welded steel construction with 4 square bars Fixed length: 420mm Expands from 630mm to 1100mm (two sliding welded sections) Bar spacing: 100mm Outer bar diameter: 20mm Inner bar diameter: 15. 88mm Key Strengths Strong Protection for Vulnerable Windows Built from welded steel to create a strong visible barrier that helps strengthen vulnerable windows and discourage forced entry attempts.