Usage: Home DIY Power Type: Hand Riveters Riveter Gun Type: Rivet Nut Guns Colour: black Material: Metal Package Contents: 5 * Nut head (M3 M4 M5 M6 M8) Only the above package content and 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.