Ready to switch it up? Start here. Compatible with all T3 Switch Kit barrels, the T3 Switch Kit Base is the ultimate multitasker. Digital T3 Rapid HeatIQ technology delivers advanced heat precision across 9 heat settings for high-gloss, long-lasting curls and waves in one smooth pass. With a Twist & Switch design, switching things up is a breeze. Just choose your barrel, twist to lock it in, and start styling. Add individual T3 Switch Kit barrels to customize your kit.* Endless looks. No rulebook.