1. Reasonable design, easy to clean, corrosion resistant, strong and durable. Various designs. Color, suitable for various types of test tubes and centrifuge tubes, can meet the needs of different experimental operations.

2. Unique design, silicone sheet fix the tube body, put it into the water to prevent floating, inverted without falling off, vibration and impact without noise, floor buffer without damage, can be fixed to more than 100 holes in combination, it is suitable for all kinds of test tubes and centrifuge tubes under 18mm, with strong material, impact resistance and acid and alkali resistance.