Product Name: Clips/Rivets/Fastener Color: Black Material: Plastic Under Engine Splash Guard Rivet Fastener Clips Plastic Push-Type Bumper Retainer Clip Fit Hole Size: 6mm/0.23 Inch Head Diameter(max.): 15mm/0.6 Inch Stem Length: 10mm/0.4 Inch Total Length: 22mm/0.86 Inch Dimension: 22 x 15mm/0.86 Inch x 0.6 Inch (L*D) The Rivet expands in the hole as the drive pin is pushed inwards, locking the assembly firmly into place. These fasteners are best fitted using the Expansion Drive Rivet Tools. Light weight and excellent insulation, they can be used on buses, trains, planes, truck, car. Package Content: 250 x Plastic Rivet Fastener Only the above package content, other products are not included. Note: Light reflection 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.