DescriptionThis is a set of screwdriver bits holders, which are made of high-quality materials, durable and can be used for a long time. Universal 1/4inch quick hex shanks and 1/4inch hex socket fit most electric drivers, hand-held drivers and bits. Hard steel holder for maximum durability, the heavy-duty construction allows for long service life.Features-Color: Blue. -Material: Steel. -Size: About 3.20X1.20X0.90cm/ 1.26X0.47X0.35in.- Universal 1/4inch quick hex shanks and 1/4inch hex socket fit most electric drivers, hand-held drivers and bits. - Hard steel holder for maximum durability, the heavy-duty construction allows for long service life. - Extend all kinds of screwdriver bits, screwdriver head conversion uses. - Suitable for drill, screwdriver, batch head and other to transfer. - Compact and portable, easy to carry around.Large-diameter flat-mouth rings are easy to install on chain buckles.