Product Name

Magnet Source Magnetic Field Viewer Card (Pack of 1)

Product Code: PROD50073430

Product Information

Card contains a 2 x 1.25* strip of viewing film to reveal the location and number of poles on a permanent magnet
2.5* x 4* laminated card contains instructions and film


Technical Details

Size (LWH): 3.75 inches， 2.75 inches， 0.13 inches
Product Details
Product Dimensions: 3.75 x 2.75 x 0.13 inches
Shipping Weight: 0.05 pounds (View shipping rates and policies)
ASIN : B005HYCM8M