Review on Maximize Efficiency with Double 💪 Microcentrifuge Centrifuge Holder - 60 Well Capacity by Jesus Baker

They work well for organizing 510 trolleys used for specific medical or recreational activities. The holes are slightly larger than the cylinders so some of the thicker brands will also fit. I find it useful for keeping track of different brands, strains and batches. Trolleys stand upright to prevent contents from spilling or spilling sideways. The bottom is firm, so when lifting, there is no risk of the trolley falling out.