I didn't pay for this press , I don't know where my husband got it? This small press has different sizes of pressing cups, one large and one small, with a small amount, put in the picture below 👇🏻

 If the quantity is large, place a similar rectangle In the volumetric flask, it can be turned as long as it is tightened. Oh, there are no buttons! I think it's super convenient, and now I have to rely on my own juice or complementary food without it, haha 😄