Magnetic Field Viewing Film 4"x4", Magnetic Flux Display, Magnet Pattern Detector, Scientific Project Teaching, Reusable and Automatic Recovery - Brownish Yellow 4"x4" ship04 The characters flex to fit

The characters flex to fit into the track

or your kettle sight glass have a 3/8 inch inside diameter

and D before purchase Applications Widely used in drive systems for encoders

Poly film adds a water-resistant layer with horizontal embossing that helps prevent liquids and fluids from spreading onto clothing or surfaces

A nice massage for your hands

Magnetic Field Viewing Film 4"x4", Magnetic Flux Display, Magnet Pattern Detector, Scientific Project Teaching, Reusable and Automatic Recovery - Brownish Yellow 4"x4" ship04 The characters flex to fitMagnetic Field Viewing Film 4"x4", Magnetic Flux Display, Magnet Pattern Detector, Scientific Project Teaching, Reusable and Automatic Recovery Brownish Yellow Placing magnet behind magnetic flux viewing film changes color by magnetic level. Color change according to magnetic intensityColor Gauss50 100G Orange 100 150G Yellow150 250G Light Green250 300G Green300 500G Dark Green 600 800G Blue 900 1000G Dark Blue Film thickkness (m): 150~200Heat