metal materials, strong and Great for screwdriver, sunglass tightening glasses tool. This is the best multi-tool / gadget to carry with you at all times. Size: approx 59x5mm2.32x0.20 inches, portable design, easy to carry when traveling. The ergonomic grip has textured designed so you for always have a strong hold onto the screwdriver for great comfort. Package includes multi-tool screwdriver, bringing convenience to your fingertips, most valuable repairing tool set for fixing any unexpected issues., Manufacturer: Maxtonser