Biohazard Symbol — Black, Ominous

960 × 800

Red Plus Sign

1280 × 1024

Warning Sign with People — Yellow

1440 × 900

Stick Figure Falling — Yellow

1920 × 1200

Caution: This is Sparta warning sign

1600 × 1200

Silhouette of Kicking Person

1920 × 1200

Acid Warning Sign

1350 × 845

Danger Sign Text

1280 × 1024

Hammer warning sign

1200 × 960

Biohazard Symbol — Red, Warning

1366 × 768

yellow biohazard symbol on black

1920 × 1200

flame hazard warning sign

1280 × 1024