MAG-Mate XX0044 Magnetic Viewing Film, High-Resolution Magnetic Field Inspection Tool, Works on Any Permanent Magnet, Reusable Film, 3.125” X 3.375”, Brown

Why did you pick this product vs others?: Works pretty well. I'm using it to view the flux fields in motors, planning to build my own linear motors.

Really cool!

My application here is primarily for helping to define the limits of the magnetic field of guitar and bass pickups. This turned out to be much more frustrating than expected. The magnetic field of some pickups are easier to define if the individual polepieces used are indeed the magnets. Bar slug or blade pickups (not visible) are harder to determine where the magnetic field truly was, as the single magnet within the copper coil was otherwise hidden to the eye (underneath the plastic pickup cover). Thus, I'm giving this item only 3-stars.

Comes with obvious creases and scratches. Has a bizarre "protective" film on top with obnoxious bright white lines that's almost impossible to remove, but apparently you're supposed to know to do this somehow. The sheet is fragile and you think you going to break it trying to remove this film that only reviewers (no instructions) told you to remove. After all that, it's not very sensitive, and it retains a fuzzy ghost image of the last thing you measured. (See image -- there's no magnet there, just creases and ghost images.) Meh.

Cool item to show children the fascinating world of magnetization

I buy these by the box and hang them all over the house on little nails, like in the kitchen and basement and bedrooms next to the beds, and in the hallway next to the thermostat. -- Luxine / Miss Understands

Very thin magnetic viewer sheet. Had to use tape to remove the protective film with white stripes. The film is very thin and tends to curl up instead laying flat. Placed in transparent page protector. The sheet remembers the last image like an etch-a-sketch and may need to be cleared by passing over a fridge magnet. Came with a crease.

It's hard to make out the forcefields. Everything is so dark. Get some iron filings and a piece of white paper. When done, just bend the paper into a funnel and save your filings into a jar for next time.

Amazing product worked really well.

Good size and quality

Neat little sheet of magnetic viewing film. Works great for locating magnets in most objects.

I make YouTube videos, used this for my videos, very useful and show the magnetic field of any shape magnet. would give 3 stars because magnetic field is less sensitive and poor quality.

The product is good, but the seller should take attention to what he’s sending, I thought I was the only one who received a damaged product, unfortunately I wasn’t. It’s not a big issue but as maniac I look to have proper things, I was about one finger to send it back finally I decided to keep it and order a new one via aliexpress