Suitable for craft enthusiasts, teacher, engineers, and office professional needing push pin for industrial project or daily organization mount tool in office, display artwork, or secure documents on metal surfaces like refrigerators, cabinet and whiteboards Strong magnets deliver strong great for securely holding heavy duty metal objects with compact square designs Package comes with 30pcs square shape push pin combine strong strength, safely handling repetitive use without demagnetization risks Engineered square shape ensures uniform alignment, while high temperature resistance (up to 150°C) ensures long time durability in demanding environments