Double Safety Type2 : applied for mounting other gadgets on the roof. Help increasing adhesion and protection of the roof from the wind. Commonly used in areas with strong winds such as along the seaside or open area. For roofing model TBR-650BL, TBR-750BL

Double Safety Type1 : applied for mounting other gadgets on the roof. Help increasing adhesion and protection of the roof from the wind. Commonly used in areas with strong winds such as along the seaside or open area. For roofing model TBR-650BL, TBR-750BL

Double Safety 700BL : applied for mounting other gadgets on the roof. Help increasing adhesion and protection of the roof from the wind. Commonly used in areas with strong winds such as along the seaside or open area. For roofing model TBR-700BL