If you think velcro rollers are a vintage hair accessory relegated to your grandmother’s beauty routine, think again. With more than 40 million views on TikTok and fans such as Gigi Hadid and Bella Hadid, Hailey Bieber, Selena Gomez, and Kate Middleton, velcro rollers are now a damage-free way to get supermodel style and volume.Priscilla…