Features: Enhanced with a high strength magnetic rings, this bit holder boosts magnetic adhesive by 50% to securely grip small screws during home repairs and DIYer projects. Features a rapid 5 second demagnetizing function and compatibility with 1/4" to 1/2" standard bits, ensuring versatility for precise toolkits and electronic repairs. Ideal for tool enthusiasts, hobbyists, and professional needing reliabled magnetic bit adapters for frequent household maintenance or workshop tasks. Compact design fits effortlessly into portable toolboxes, making it perfect for on the go repairs during travel, outdoor projects, or tight workspaces environments. Built with steel reinforced construction, it triples life compared to plastic while maintaining consistent performances under heavy duty use. Specifications: Component:plastic and metal composite Dimensions: 30mm in diameter, 10mm in thickness Color: Black/Blue optional Package Includes: 1 Set Magnetic Screwdriver Bit Holder note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.