Test Tube Party Pack, 50-Hole Test Tube Rack with 50 Clear Plastic Test Tubes and Caps w/Signature Party Picks

Detachable ABS Plastic Test Tube Rack is clear for easy viewing and holes are inscribed with number for tracking tubes. Rack has convenient end plates for identification labels. The polystyrene 16x150mm plastic tubes are not autoclavable or dishwasher safe but are chemically resistant and clear like glass, FDA approved and made in USA. Since polystyrene is not as hard as glass it will have minor scratches.