Fast-Trac Air Lite SP Double Backer Plates Green 48 pack (552SPG-48)

Lightweight double polymer backer Designed for single-ply tracks using Top-Gun SP™ studs Extended height adds rigidity and enhances braking and acceleration Eliminates need for a tall nut on studs up to 1.375" length Hole spacing center-to-center is 1.150" Sold as a pack