About this 3D model

Don't throw away that bag just because the zip pull has detached! With just a standard small-sized paperclip and this model, you can give new life to broken things. You can of course buy replacement zip parts fom haberdashers, but that's often difficult to justufy when the thing that's broken is near the end of its life anyway, or just isn't worth spending money on. My main consideration here was cost - what low-cost item could be brought to bear on making a broken zip work again? Obviously, something came to mind, and here we are!