This is a handle hole reinforcement which securely snaps together. While specifically designed for U-Haul boxes, it can be scaled to suit your needs.
Box_Handle_Reinforcement-A_v4.3mf | 21.5KB | |
Box_Handle_Reinforcement-A_v4.stl | 82.7KB | |
Box_Handle_Reinforcement-B_v4.3mf | 56.0KB | |
Box_Handle_Reinforcement-B_v4.stl | 240.3KB | |
Cardboard_Box_Handle_Reinforcement_v4.step | 76.2KB |