: A standoff is a fastener that is used to create space between two objects, often to properly position them. In the world of electronic components and electronic hardware, standoffs are typically used to space circuit boards, panels, doors or gears. Female-Female standoffs of different sizes and screws are both included in this set. Features: Standoffs are made of high quality brass material, durable and long service life. Well produced surface without any bur, do no harm and feels quite comfortable. Waterproof, rust resistant and easy to clean, you can simply clean it with a cloth. This set includes both Female-Female standoffs in different sizes and screws. Well protected and assorted in a plastic box for convenient use and storage. Specifications: Material: Brass, steel Thread: M2 Thread Pitch: 0.4mm Standoff Color: Yellow Box Size: 12.5 x 6.3 x 2.3cm / 4.92 x 2.48 x 0.9" Screws: M2 x 5mm, 180pcs Female-Female: M2 x 3mm, 10pcs Female-Female: M2 x 5mm, 10pcs Female-Female: M2 x 7mm, 10pcs Female-Female: M2 x 9mm, 10pcs Female-Female: M2 x 11mm, 10pcs Female-Female: M2 x 15mm, 10pcs Female-Female: M2 x 18mm, 10pcs Female-Female: M2 x 20mm, 10pcs Female-Female: M2 x 25mm, 10pcs Weight: 100g(approx.) Package Includes: 90pcs x Standoffs 180pcs x Screws Note: 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.