Heathrow Scientific HD14521A Aluminum Small Weighing Boat, 43mm Diameter x 12mm Height (Pack of 100)

Works well when we plant tiny seeds in the soil blocks

They are great but watch the price Keep an eye on the price I've paid $5 then the next time they were like 50$ so I waited and I got them for like $10

These work great for mixing small quantities of things, like two-part epoxy. I also use them as little parts cups for holding small screws and other hardware when taking apart some device for repair.

Thin aluminum is ok for weighing powders, but not for applications requiring a stiffer weigh boat.

I use these for oven solids measurements - they are appropriate for 1 - 2 grams of samples spread in the bottom. Can't beat the price.