Too light weight so I did the same as the other reviewer and loaded the database with pennies. This had the added benefit of raising the brass coil pad so it doesn't "get lost" in the body, the pad is a bit small. The top comes off too easily and the soldering iron tip hole is a little rough, as if the stamp is worn out. These are really small issues, not impediments to the deal. There are small rubber buffers on the underside to keep the device from moving. I used to always use a damp sponge to clean a hot soldering tip and didn't even know about this alternative. I wish I had as it works much better. Doesn't chill the tip and cleans better. I will never go back to the wet sponge method.