The Droplet Blood Collection Tray with 13mm Tube Rack by MarketLab is a plastic tray designed to collect droplets of blood and hold 13mm blood collection tubes. It features a large collection area to catch droplets and 8 slots to hold 13mm tubes upright. The tray is injection molded from clear polystyrene for visibility. It has overall dimensions of 3.5 x 5.25 x 0.75 inches and each tube slot measures 13mm in diameter. This product provides an organized system to collect blood droplets and transfer them into tubes for testing and analysis. The tray is disposable.