Are ALL of the hair extensions from hot topic able to be curled and straightened?

http://www.hottopic.com/hottopic/Accessories/HairAccessories/Manic-Panic-Aquatic-Turquoise-Long-Hair-Extension-220798.jsp <-- These are the ones I want, but it doesn't say you can curl them, like these do..http://www.hottopic.com/hottopic/Accessories/HairAccessories/Turquoise-Hair-Extensions-2-Pack-833205.jsp If synthetic extensions can't be curled according to a bunch of websites, why does it say that these are? Can the extensions in the first link be curled?