Review on Rack Tiers 52300 Studball Colors by Gunaraj Varga

I live in an old house with turned and plastered walls and ceilings on the ground floor. I bought this in the hope that it would be better at finding nails/studs than other devices I've tried. While this worked somewhat, it didn't stick to the nails like I had hoped, so finding the studs was harder than I had hoped. It worked great on my renovated second floor which had drywall, but I was disappointed to find studs in the old plaster walls. If you're buying it for that purpose I wouldn't highly recommend it, but if your walls are drywall it works fine.