Features: 100% brand new and high quality Long lasting and easy to install Stable and shock-proof Gives you the perfect solution for aircraft use Specifications: Material: Plastic Color: Black Inner hole: 6mm Length: 6.0 inch Screw Pitch: 4.5 inch Dimensions: 3.94 in x 2.76 in x 1.97 in (10.0 cm x 7.0 cm x 5.0 cm) Weight: 2.47 oz (70 g)