Peristaltic pump for 5V DC stepper motor, small volume

https://youtu.be/IQYVqhdgfC4

Attention for using this stepper motor: Use a pump only for small volumes of liquid !

I see many peristaltic pump for buying, but unfortunately from China to Slovakia(EU) it takes 37 days. So after this I decide to create one pump, with simple and famous 28BYJ-48 5V stepper motor.

Includes:

• 3 ball bearings(Diameter-outer=12.7mm. Diameter-inner=4.58mm, Height= 4.95mm)
• 1 stator
• 1 rotor(2 parts)
• 1 cover
• 4mm silicone tube with 3mm hole inside, any length.