Anti-Slip Auto Trunk Mat – Prevents Cargo From Sliding $6.99 ($34.99 List) with  Free Shipping with promo code 3OFF.  Prevent gear, supplies, and cargo from slipping around in your trunk with this convenient Anti-Slip Auto Trunk Mat featuring a grid pattern design to keep items in place.  Measures approximately 48″ x 36″.  Last time I posted this deal was in June for $9.99.