1、These standoff assortments are made of high quality brass for durable and long service life 2、Well manufactured surface without any bur, do no harm and feels quite comfortable 3、Waterproof, rust resistant and easy to clean, you can simply clean them with a cloth 4、This set includes Female-Female, Female-Male standoffs in different sizes, screws and nuts 5、Well protected and assorted in a resealable transparent plastic box for convenient carry and storage Description: 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, Female-Male standoffs of different sizes, screws and nuts are all included in this set. Features: These standoff assortments are made of high quality brass for durable and long service life. Well manufactured surface without any bur, do no harm and feels quite comfortable. Waterproof, rust resistant and easy to clean, you can simply clean them with a cloth. This set includes Female-Female, Female-Male standoffs in different sizes, screws and nuts. Well protected and assorted in a resealable transparent plastic box for convenient carry and storage. Specifications: Main Material: Brass Set A: Female-Female Standoffs: 10pcs x M3*5mm 10pcs x M3*10mm 10pcs x M3*15mm 10pcs x M3*20mm M3*6mm Screws x 60pcs Male-Female Standoffs: 10pcs x M3*5+6mm 10pcs x M3*10+6mm 10pcs x M3*15+6mm 10pcs x M3*20+6mm M3 Nuts x 60pcs Box Size: 13 x 6.5 x 2.3cm / 5.11 x 2.56 x 0.9" Set B: Female-Female Standoffs: 10pcs x M3*6mm 10pcs x M3*10mm 10pcs x M3*15mm 10pcs x M3*20mm M3*6mm Screws x 60pcs Male-Female Standoffs: 10pcs x M3*6+6mm 10pcs x M3*10+6mm 10pcs x M3*15+6mm 10pcs x M3*20+6mm M3 Nuts x 60pcs Box Size: 13 x 6.5 x 2.3cm / 5.11 x 2.56 x 0.9" Package Includes: 1 set x Standoff Assortment