17L Heightened PP Storage Box Locking Clip

This is a locking clip for a 17L storage box. The original clips did not seal tightly enough, so I designed a clip to improve the sealing performance. The measured humidity before adding the clip was 22, and after adding the clip, it dropped to 20 (the hygrometer's minimum display is 20). Four clips were used for one box. This filament storage box is very inexpensive, costing around ten yuan each, and can hold 4 rolls of filament.