High Quality Material:made of metal,durable and strength. Perfect for fasten your rc model car.340pcs included: M3 Screws Flat Head from 6mm to 12mm, M3 Screws Round Head from 6mm to 12mm, with M3 M4 Flat Washers.( Washers only,Not include M3 M4 Bolts).Perfect for most RC model cars. such as HSP Redcat Traxxas CC01 RC4WD Axial SCX10 HPI RC Car Truck or other place.Package included:340pcs different size of rc screw kit to meet all your needs. All pcs are placed orderly in a transparent box that to keep your screws easy to take and use.Material:Metalcolour:Black+silverPackage Contents:30 x Flat head screws M3 x 630 x Flat head screws M3 x 830 x Flat head screws M3 x 1030 x Flat head screws M3 x 1230 x Round head screws M3 x 630 x Round head screws M3 x 830 x Round head screws M3 x 1030 x Round head screws M3 x 1250 x M3 Flat washer50 x M4 Flat washer1 x Magnetic Screw TrayOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.