Strength, functionality and great looks, for professional quality are yours with the Challenger line of storages boxes. Each box features twin commercial gas struts that lift lid automatically for easy, one-handed use; lockable, quick-release stainless handles and patent pending structured foam filled lids that can stand up to even the most challenging loads. Seams are hand wielded for durability and strength and lids are bolted on to box body using a single heavy duty aluminum, piano style hinge for years of reliable service. Rust resistant black powder coated finish is electro-statically applied for maximum protection against wear and harsh weather conditions., Constructed with rust and corrosion resistant, premium diamond plated aluminum