set2: 1 x Plastic Box (contains 310 PCS Connector Kit) + 1 x M3 Nylon Hex Spacers Screw Nut Assortment KitUses: used in strong acid place, no rust, light weight.Usage: Use the screw and nut to isolation board and the board.1.Good for home electronics prototyping.2.Compatible with For arduino and Raspberry Pi projects. 3.Box packaging, facilitate classification management.Material: Nylon/PlasticColor: as shownPlastic box size: 130 x 65 x 22mmAccessories total of 120 pcs:Nylon nut M3 20 pcsNylon screws M3 x (20mm) 20 pcsNylon column M3 (6mm + 6mm) 10 pcsNylon column M3 (10mm + 6mm) 10 pcsNylon column M3 (15mm + 6mm) 10 pcsNylon column M3 (20mm + 6mm) 10 pcsNylon spacers M3 (6mm) 10 pcsNylon spacers M3 (10mm) 10 pcsNylon spacers M3 (15mm) 10 pcsNylon spacers M3 (20mm) 10 pcsQuantity30Pcs Connector Housing Female 2.54mm 1x1P20Pcs Connector Housing Female 2.54mm 1x2P20Pcs Connector Housing Female 2.54mm 1x3P10Pcs Connector Housing Female 2.54mm 1x4P10Pcs Connector Housing Female 2.54mm 1x5P10Pcs Connector Housing Female 2.54mm 1x6P10Pcs Connector Housing Female 2.54mm 1x8P100Pcs Jumper Wire Cable Female Pin Connector100Pcs Jumper Wire Cable Male Pin ConnectorPackage Contents:1 x Plastic Box (contains 310 PCS Connector Kit)310 x 2.54mm Connector Kit1 x M3 Nylon Hex Spacers Screw Nut Assortment KitOnly 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.