Avery Magnet000005 adhesive magnets 20-pack 0.71" x 0.12

STEM Classroom Magnet Pack

This 20-piece set supplies uniform ceramic magnets for basic physics demonstrations in schools and science kits. Each round ferrite magnet measures 0.71" in diameter and 0.12" in thickness, ensuring consistent size and strength for repeatable experiments. The adhesive backing allows quick attachment to boards or surfaces during classroom activities. Designed for educational use, they support hands-on exploration of magnetism and force concepts.

Replaces Loose Ceramic Discs

The pack replaces assorted loose magnets that vary in size or strength, which can skew measurement comparisons in lab-style activities. Switching to this uniform set is worth it when repeatable results matter for student testing or controlled demonstrations. The consistent dimensions remove a variable from simple measurement exercises. Adhesive backing also saves setup time compared to applying separate glue or tape.

Adhesive Backing Limits

The adhesive fixes magnets to flat surfaces but may not hold on rough, curved, or heavily textured materials without additional support. Ceramic material is brittle and can chip or crack if dropped or struck during handling. Magnetic force is suited for lightweight objects and demonstration purposes rather than heavy-duty holding. Outdoor use requires thorough drying after moisture exposure to maintain performance.