Feature:1. The main parts are made of aluminum meterial, strong and durable2. Infinite positioning possibilities can achieve maximum flexibility in your own design3. Widely used in construction industry aluminum frame structure, very convenient4. 2-hole placement is designed for vertical joints, very practical5. Adopt advanced technology with excellent craftsmanship to bring smooth surface, which will not hurt your hands in workSpecification:Item Type: Joining PlateMaterial: AluminumSurface: OxidationPurpose: Used for linear extension connection or overlapping connection between profilesModelLength(approx.)Width(approx.)Hole distance(approx.)Thickness(approx.)2020-2 Hole40mm or 1.6in18mm or 0.7in20mm or 0.8in4mm or 0.2in3030-2 Hole60mm or 2.4in28mm or 1.1in30mm or 1.2in4mm or 0.2in4040-2 Hole80mm or 3.1in38mm or 1.5in40mm or 1.6in6mm or 0.2in.Package List:10 x Joining Plate