Liquid Vortex Mixer for Labs, Nail Salons, Painters, Tattoo Artists and Hobbyists | Mix up to 50mL in Under 5 Seconds | Powerful 4000 RPM Mini Shaker | Multi-Purpose Vortex Mixer by Fristaden Lab

Need to make sure you hit the sweet spot in order for it to start mixing

Works well in my classroom of high school kids. Pretty tough device

I have bought a lot of paint mixers in the last few years. The top is made of a better plastic then the others and hasn't split. The mixer however does not mix as strong as the others I have had. It just takes longer to mix the paint.

Being a tattoo artist for 10 years this device mixes ink and pigment in seconds. Strong motor great buy!

Very durable and works well.