Package Includes: including 60 pieces hex screwdriver bits holders and 10 pieces buckles, compatible with most 1/4 fast hex handle and 1/4 hex sockets, and electric screwdrivers, hand- screwdrivers, drill bits, a sufficient quantity to meet your daily use Reliable Material: the drill bit socket adapters are made of aluminum alloy, and feature nice durability, , and sturdy, which ensures their , and the chrome plated surface is anti rust and corrosion resistant, the lock buckle bits holder can carry bits tools up to 500 g in weight; To keep the drill bits not easily to fall Easy to Use: the bit holder has a ball bearing that holds the bit in the Perfect place, and they work like a slide or snap lock; Which makes it easier to change the bit with one hand; Their smooth surfaces and removable bushings can well avoid hex key chain extension bars from unexpectedly falling, ensuring the safety of high-altitude operation Save Time and Space: the hex drill bits extension bars are accessible, you can clip them to about anywhere, you can connect it to a bag or a belt loop, saves a lot of time searching for certain drill bits when needed Wide Application: for drill bits with a 1/4 inch hex ; Bits are also easy to remove and place back, suitable for transferring many kinds of drill bits, screwdrivers, and more; It can also be applied as an outdoor hiking buckle; You do not need to carry full of bits in tool bag, just attach the tools Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Material: Aluminum alloy colour: Black+Multicolor Package Contents: 60 x hex screwdriver bits holders 10 x carabiner buckles 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.