Features Made of high quality nylon material, insulated, thermal insulation and corrosion resistant. Waterproof standoffs are rust resistant and easy to clean. Ideal compatible with mounting between PCB circuit boards and machine boards. They do not slide when properly used. All parts are packed in a plastic box compatible with easy carrying. Features: Made of high quality nylon material, insulated, thermal insulation and corrosion resistant. Waterproof standoffs are rust resistant and easy to clean. Ideal compatible with mounting between PCB circuit boards and machine boards. They do not slide when properly used. All parts are packed in a plastic box compatible with easy carrying. Specification: Material: Nylon Color: Black Size: M2/M2.5/M3 Package list: 20 x M2 Nuts 20 x M2.5 Nuts 20 x M3 Nuts 20 x M2*6mm Screws 20 x M2*15mm Screws 20 x M2.5*6mm Screws 20 x M2.5*15mm Screws 20 x M3*6mm Screws 20 x M3*15mm Screws 10 x M2 6+6mm Male-Female Standoff 10 x M2 8+6mm Male-Female Standoff 10 x M2 10+6mm Male-Female Standoff 10 x M2 12+6mm Male-Female Standoff 10 x M2 15+6mm Male-Female Standoff 10 x M2 20+6mm Male-Female Standoff 10 x M2.5 6+6mm Male-Female Standoff 10 x M2.5 8+6mm Male-Female Standoff 10 x M2.5 10+6mm Male-Female Standoff 10 x M2.5 12+6mm Male-Female Standoff 10 x M2.5 15+6mm Male-Female Standoff 10 x M2.5 20+6mm Male-Female Standoff 10 x M3 6+6mm Male-Female Standoff 10 x M3 8+6mm Male-Female Standoff 10 x M3 10+6mm Male-Female Standoff 10 x M3 12+6mm Male-Female Standoff 10 x M3 15+6mm Male-Female Standoff 10 x M3 20+6mm Male-Female Standoff 1 x Plastic Box 1 x Screwdriver Package List