For racers who prefer thicker tearoffs, these tearoffs are each 4mm thick with patterns specific to Bell helmets that use the SE07 shields. Each Speedstack™ package contains 4 stacks of 3 tearoffs for a total of 12 tearoffs. Specifically designed for use with the Zylon Visor Panel. Compatible with the HP7, RS7C LTWT, RS7SC LTWT, RS7 Carbon, RS7K Carbon, RS7, RS7K, KC7-CMR Carbon, and KC7-CMR.