Both standards
Tumble dry, normal heat
Tumble dry at a normal setting.
Read this one with the rest of the label. If the garment is destined for a US market its two dots sit below a high setting; internationally they are the top of the scale.
Where it sits on the label
- Washing
- Bleaching
- Drying
- Ironing
- Professional care
Drying comes third of the five. A label is always written in this order and simply leaves out whatever does not apply, so a tag carrying only three symbols is not missing anything. The next shape along yours is the next of these its maker had something to say about.
The rest of the square