Specification:Tool box Size: 130 * 65 * 23mm(L*W*H)Quantity:Main board insulation gasket (Red M3 x 8) : 30 pcsMain board fixed screws (M3 x 5) : 30 pcsChassis hand twist screws (Silver M3.5 x 5) : 6 pcsHard drive screw (M3.5 x 5) : 30 pcsChassis hand twist screw (Black M3.5 x 5) : 6 pcsMain board conventional copper column (M3 x 6 + 6) : 24 pcsConventional chassis fan retaining screw (White zinc M5 x 10) : 24 pcsCd-rom set screws (M3 x 4) : 30 pcsChassis high-strength screw (M3.5 x 6) : 24 pcsConventional chassis fans retaining screw (Black M5 x 10) : 24 pcsPackage Included:1 x Transparent plastic case30 x Main board insulation gasket (M3 x 8)30 x Main board fixed screws (M3 x 5)6 x Chassis hand twist screws (silver M3.5 x 5)30 x Hard drive screw (M3.5 x 5)6 x Chassis hand twist screw (black M3.5 x 5)24 x Main board conventional copper column (M3 x 6 + 6)24 x Conventional chassis fan retaining screw (white zinc M5 x 10)30 x Cd-rom set screws (M3 x 4)24 x Chassis high-strength screw (M3.5 x 6)24 x Conventional chassis fans retaining screw (black M5 x 10)Note:The above numbers behide M are for screw tooth diameter x length,the unit is mm.Example: copper column (M3 x 6 + 6)Please feel free to contact us if any problems, our customer service team will reply to you at the first time.