Wide usage. Male female standoffs screws assortment kit fits for enthusiast, but also are nice to the beginner. Reliable and advanced, the female standoffs screws assortment kits contain the functionality of fixing your electronics, practical and useful for you. Features -Color:As shown -Material:Brass, iron -Size:2.20X0.30X0.30cm/0.86X0.12X0.12in - Wide variety of classification components, so these standoffs screws fit for almost any application. - Packed in a storage box, lightweight and compact size, easy and convenient to carry and store when not in use. - The standoffs screws assortment kit is suitable for industries of communication, office equipment, electronics, etc. - Brass standoffs have good insulation, high mechanical strength, high tensile and compressive strength. - This standoffs screw kit is easy to install and widely used in fixing PCB, computer motherboard and so on. Package list: 10 brass male-female standoffs (5mm + 3mm) 10 brass male-female standoffs (10mm + 3mm) 10 brass male-female standoffs (15mm + 3mm) 10 brass male-female standoffs (20mm + 3mm) 10 brass female-female standoffs (5mm) 10 brass female-female standoffs (10mm) 10 brass female-female standoffs (15mm) 10 brass female-female standoffs (20mm) 20 stainless steel screws ( -2x4mm) 20 stainless steel nuts ( -2) 1 x storage box