EU Responsible Persons information: Name: PI NETWORK SARL Address:38 rue Dunois 75647 Paris CEDEX 13,75013,FR E-mail:friedlichrichter@outlook.com This merchant is committed to only offering products that comply with the General Product Safety Regulation.Ever had the problem of the drill bit was not long enough to reach what you were trying to drill? This extension set solves that issue. It is a three-piece ¼” Hex Shank set in sizes of 60mm, 100mm and 150mm. That is approximately 2.5", 4" and 6" of added length you can choose from. They are made of chrome vanadium steel (CR-V) and heat treated to provide maximum strength and wear resistance. This set will allow you to get into those tight spaces much easier. It is a nice set for your handyman. Magnetic Extension Bit Holder - High Quality Specifications: Shank: 1/4" hex shank (6.35mm) Length: 60mm(25g), 100mm(32g), 150mm(40g) Color:Black and Silver Material: CR-V Stainless Steel Screwdriver Bit Holder with Magnetic Tip - Lock-n-Load Quich Change and Release Suitable for drill, screwdriver, batch head and other to transfer. Extend all kinds of 1/4" screwdriver bits, screwdriver head conversion use Delivery 1 x Magnetic Screwdriver Bit Holder