This magnetic wristband with a belt holder is adjustable and holds a myriad of screws and nails or other small metal items you need. It is definitely a very handy tool! I love that I can wear it on my wrist or on my tool belt, so it is where i need it at all times. it is a heavy duty fabric an dwell made so I know it it going to hold up to some wear and tear. this is exactly what I need for working on the construction projects that i have been doing. This is a very light weight tool that makes my job a lot easier. No more holding the nails or screws in my mouth! This is breathable fabric also so my wrist doesn't sweat. There is a spot for my carpenters pencil also! Really great!