Disposable square cuvette caps provide a practical sealing solution for laboratory cuvettes used in spectrophotometric and analytical testing. The plug type design allows the cap to fit securely into the cuvette opening, helping protect liquid samples from contamination, evaporation, and accidental spillage during measurement or handling. These caps are designed for compatibility with standard square cuvettes commonly used in research and quality control laboratories. Manufactured from reliable laboratory grade materials, they ensure consistent performance during routine testing procedures. The disposable format eliminates cleaning requirements and helps prevent cross contamination between samples. Supplied in convenient packs of 500 pieces, these caps are ideal for laboratories performing frequent optical measurements and high volume analytical work.