Include 100 sockets with 6 sizes to meet your needs, these fine quality stainless steel screws are rustproof and durability enough for a long service life. Specifications: Material: metal Included: M-410: 30PCS M510: 30PCS M610: 15PCS M615: 15PCS M820: 5PCS M1025: 5PCS Package Size: 175 * 105 * 25m / 6.9 * 4.1 * 1.0in Package Weight: 206g / 7.3ounce 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 +/- 0-30mm. Package List: 1 * One Set Of Screw