Caution: Floor is Lava Sign

1600 × 900

Radioactive Warning Symbol — Yellow, Dramatic

1152 × 864

Caution sign with sharp edges warning

1440 × 900

Caution: Floor is Lava Sign

1920 × 1080

Warning Sign with People — Yellow

1440 × 900

Biohazard Symbol — Red, Warning

1366 × 768

Bang Head Here sign

1600 × 1200

Warning Sign with Figures

2844 × 1600

Warning Sign

1206 × 776

Caution sign with warning text

1680 × 1050

Caution: No Warning Signs

1500 × 1502

Caution sign with humorous message

2000 × 1500