50 Plastic Petri Dishes 90mm x 15mm Sterile Bacterial Culture Dishes with Transparent Petri Lids and Plastic Droppers for Laboratories and Schools

【COMPLETE SET: 50 BOXES + 50 PIPETTES FOR IMMEDIATE USE】 This plastic Petri dish kit contains 50 Petri dishes (9 cm diameter, 20 ml volume) with matching lids PLUS 50 transfer pipettes (3 ml, 15.5 cm long), saving you the need to purchase separate components and allowing you to immediately begin your bacterial cultures, plant cultures, or crystallographic experiments – perfect for school classes or research groups. 【CRYSTAL-CLEAR FOR MICROSCOPE OBSERVATION】 These high-quality polystyrene (PS) Petri dishes offer crystal-clear transparency, allowing you to observe colony growth, mold formation, or chemical reactions directly under the microscope without removing the sample from the dish, saving you time and preventing contamination. 【AIRTIGHT LID PREVENTS 【CONTAMINATION】 Each Petri dish is equipped with a perfectly fitting lid without ventilation holes, which isolates the culture environment from outside air, dust, and germs while allowing minimal gas exchange. This is especially important for multi-day experiments such as mold growth or antibiotic testing.
【3ML PIPETTES INCLUDED FOR PRECISE DOSING】 The 50 included transfer pipettes (3ml volume each, graduated in 0.5ml increments) allow for precise transfer of culture media, bacterial suspensions, or colored solutions without the need to purchase expensive laboratory micropipettes. They are ideal for school experiments where precision is important but the budget is limited. 【VERSATILE: FROM SCHOOL PROJECTS TO PROFESSIONAL LABORATORIES】 Whether it's biology lessons at school (germ growth on agar), university research (cell cultures), projects for science fairs, or even creative crafts (resin molding, color mixing), these petri dishes are suitable for all tasks and can be easily annotated with a permanent marker thanks to their smooth PS surface for recording experimental results.