Application: These are M10 threaded fittings, they are hollow and are used for connecting cables, suitable for lamps, chandeliers, candle holders and other lamps or any type of spotlight. Material: galvanized metal, durable for long term use, you save money and time. Size: M10 lamp pipe fitting includes 4 lengths, 20mm, 30mm, 40mm, 50 mm, 3 mm M10 nut. Package contents: 3 M10 lamp pipe fittings: 3pcs x 20mm, 3pcs x 30mm, 3pcs x 40mm, 3pcs x 50mm, 24 M10 nuts. 4 different lengths to meet your different needs. Presentation: Please check the size before purchasing. Made of galvanized metal, strong, anti-rust and beautiful. Widely used in advertising cables, lamps, chandeliers, candle holders and other lamps or any type of projector. Features: Material: metal galvanized. Size: M10 fitting for lamp pipe - Lengths: 20 mm, 30 mm, 40 mm, 50 mm - Nut M10 x 3 mm. Contents: 36 pieces in total. 3 x M10 - 20 mm / 0.8 inch lamp pipe fitting 3 x M10 - 30 mm / 1.2 inch lamp pipe fitting 3 x M10 - 40