Tactical Patrol Truck - LEGO set #6632-1 (Building Sets > Town > Police)
Lego 1x3 Technic Liftarm Thin Qty 4 (6632/65123) - Pick your color | eBay
LEGO Compatible Parts - Technic Beam 1 x 3 Thin #6632
Amazon.com: Gobricks GDS-689 Liftarm Thin 1 x 3 - Axle Holes Compatible with Lego 6632 All Major Brick Brands Toys Building Blocks Technical Parts Assembles DIY (199 Dark Bluish Gray(072),40 PCS) : Toys & Games