High-concerned chemical: This product is free from high-concern chemicals, ensuring a safer and more environmentally friendly tool for your home and professional use. Crafted with the user's health and safety in mind, it meets stringent safety standards. Screw Head Size: The screw head size is as shown in the picture, designed to accommodate various screw types and sizes. This versatility makes it an essential tool for any DIY enthusiast or professional, providing the right fit for multiple applications. Material: Made from Alloy Steel, this screwdriver set offers exceptional strength and resistance to wear and tear. The robust construction ensures long-lasting performance even under rigorous use, making it a dependable choice for any toolkit. Color: As Shown Material: Steel Package Contents: 1*Quick replacement handle 1*Direct insertion handle 1*Self-locking screwdriver holder 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.