Features: brand new and high quality Made of high-quality iron materials, practical and durable. This conversion rod is designed to hand electric drill to polishing cutting disc. Just a small conversion rod, electric drill can create a new tool, which is cost saving. We offer 5 kinds optional, you can choose one or more according to your needs. Great workmanship, with strict quality assurance, high safety factor, can be used with peace of mind. Specifications: Material: Iron Type: Silver Round Rod/Black Round Rod/Silver Round Shank Threaded Rod/Silver Hex Rod/Black for Triangle Rod Silver Round Rod Size: approx 46x14mm/1.81x0.55 inches Black Round Rod Size: approx 44x10mm/1.73x0.39 inches Silver Round Shank Threaded Rod Size: approx 44x10mm/1.73x0.39 inches Silver Hex Rod Size: approx 40x10mm/1.57x0.39 inches Black for Triangle Rod Size: approx 52x10x10mm/2.05x0.39x0.39 inches Package Includes: 1x Conversion Rod note: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.