Racing Optics is a laminated tearoff solution for dirt and pavement forms of racing eliminating the need to apply individual tearoffs. For racers who prefer thicker tearoffs, these tearoffs are 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 RS7C LTWT, RS7SC LTWT, RS7 Carbon, RS7 Pro, RS7-K, HP7, KC7-CMR Carbon, and KC7-CMR.