Safety Zinconium Roller Shutter 3.9 cmCovering Surface : 3.9 cmColors: White, Beige, Grey,BrownMax width: 4.00 mSelling points:Small Holes for Ventilation and Lighting.Symmetric Holes distributed over the window size New Zinconium 5 cm Covering Surface: 5 cm Colors: White, Beige, Grey . Max Width : 5 m Selling points: Symmetric Holes distributed over the window size Anti Theft Security Slats. Strong slats . Safety Zincalium Shutter 5.5 cmCovering Surface area: 5.5 cmColors: White, Beige, Grey,BrownMax width: 5 mSelling points:Small Holes for Ventilation and Lighting.Anti Theft Security SlatsSymmetric Holes distributed over the window size NGSS (New Generation Safety Shutter)5 cm:Covering Surface: 5 cmColors: White, BeigeMax Width : 5 mSelling points:Big Holes for better Ventilation and Lighting.Anti Theft Security SlatsSymmetric Holes distributed over the window sizeSelf-locking Technology.