Super-fast and easy assembly Presto with improved Ergonomic Design! Handles are engineered for maximum comfort and reduced wrist strain. Presto Instant Assembly - just push corners together and the box is ready for use R-Kive FastFold quick and easy assembly. Handles are reinforced and tear-resistant. Heavy-duty construction stacks up stronger and withstands frequent handling. Presto with deep, locking lift-off lid with zip tie secure closure (zip ties not included. Smooth rolled edges add strength and prevent paper cuts. Improved Ergonomic Design! Handles are engineered for maximum comfort and reduced wrist strain. 30 degree angle ergonomic handles allow for neutral wrist posture to maximize comfort during lift and carry. Double wall, double bottom construction for stacking, storage, and transport you can trust Deep, locking lift-off lid with zip tie secure closure (zip ties not included). SFI certified. Contains Recycled Content - See Specs for Details.