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, save you money and time. Size: M10 lamp hose fitting includes 4 lengths, 20mm, 30mm, 40mm, 50 mm, 3mm M10 nut. Package includes: 3 x 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. Introduction: Please check the size before purchasing. Made of galvanized metal, solid, rustproof and beautiful. Widely used in advertising cables, lamps, chandeliers, candle holders and other lamps or any kind of spotlight. Features: Material: metal galvanized. Size: M10 fitting for lamp hose - Lengths: 20mm, 30mm, 40mm, 50mm - Nut M10 x 3mm. 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 hose fitting 3 x M10 - 40 mm /