The Bel-Art Hydrometer Rack is an essential laboratory accessory designed for securely holding hydrometers during measurements. Made from durable polypropylene, this 7-inch rack is resistant to chemicals and ensures stability. Its long design accommodates various hydrometer sizes, preventing breakage and allowing for easy reading of measurements. The lightweight yet sturdy construction makes it ideal for both educational and professional settings. Keep your lab organized and efficient with this reliable hydrometer rack, perfect for any scientific application.