Features:Made of high quality nylon material, insulated, thermal insulation and corrosion resistant.Waterproof standoffs are rust resistant and easy to clean.Ideal for mounting between PCB circuit boards and machine boards.They do not slide when properly used.All parts are packed in a plastic box for easy carrying.Specification:Material: NylonColor: BlackSize: M2/M2.5/M3Package list:20 x M2 Nuts20 x M2.5 Nuts20 x M3 Nuts20 x M2*6mm Screws20 x M2*15mm Screws20 x M2.5*6mm Screws20 x M2.5*15mm Screws20 x M3*6mm Screws20 x M3*15mm Screws10 x M2 6+6mm Male-Female Standoff10 x M2 8+6mm Male-Female Standoff10 x M2 10+6mm Male-Female Standoff10 x M2 12+6mm Male-Female Standoff10 x M2 15+6mm Male-Female Standoff10 x M2 20+6mm Male-Female Standoff 10 x M2.5 6+6mm Male-Female Standoff10 x M2.5 8+6mm Male-Female Standoff10 x M2.5 10+6mm Male-Female Standoff10 x M2.5 12+6mm Male-Female Standoff10 x M2.5 15+6mm Male-Female Standoff10 x M2.5 20+6mm Male-Female Standoff 10 x M3 6+6mm Male-Female Standoff10 x M3 8+6mm Male-Female Standoff10 x M3 10+6mm Male-Female Standoff10 x M3 12+6mm Male-Female Standoff10 x M3 15+6mm Male-Female Standoff10 x M3 20+6mm Male-Female Standoff1 x Plastic Box 1 x Screwdriver