Features Professional Made: Switch on/off magnetic base to move at any time without reaction force, avoiding damage to the gauge and working desk. Central Locking Mechanism: The base is equipped with a permanent alloy magnet and a central locking mechanism with anti-loose springs. Premium Material: Made of highly wearproof alloy steel, the shell of magnetic base holder is chrome‑plated to achieve rust‑proof, durable and beautiful results. Reliable Performance: Concise structure, the magnetic base holder is easy to use and maintain, high sensitivity, stable and reliable. Quick to Use: Smooth universal painted chrome arm can be fixed at any angle, the magnetic base holder is easy and quick to use, widely used in mechanical correction and technical measurement. Description: Magnetic base holder also known as universal base holder is widely used in the machine manufacturing industry, which is also used in various scientific research institutions. There is a cylinder with a bar-shaped permanent magnet inside it. And the position of the outer base is a soft magnetic material, which is a kind of ferrite material that is easy to magnetize or demagnetize in the weak magnetic field.   Specifications: Material: Alloy steel Color: Red Holding Force: Approx. 7kg Overall Height: Approx. 35cm/13.78in Clamping Hole Diameter: Approx. 8mm/0.31in Base Holder Size(L*W*H): Approx. 60x50x55mm/2.36x1.97x2.17in Weight: Approx. 1197g   Package Includes: 1 x Universal Magnetic Base Holder   Note: 1. When the switch turns ON, it turns on the magnetic function. 2. Due to the difference between the monitors and light effect, the picture may not reflect  the actual color of the item. 3. Please allow 1-3mm error due to the manual measurement. Thanks for your understanding. 4.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List