Heathrow Scientific HS1421A Standard Weighing Boat, Polystyrene, Small, 46 mm L x 46 mm W x 8 mm D, Blue (Pack of 500): Science Lab Weighing Dishes: Amazon.com: Industrial & Scientific
Disposable Blue Polystyrene Lab Standard Weighing Boat Heathrow Scientific
Pour Boat Weighing Dish by Globe Scientific, Bendable Polystyrene, Easy Pour Design, Disposable Scale Trays for Weighing & Mixing Liquid & Powder, Antistatic, 20mL Capacity, White, Case of 250: Science Lab Weighing