12PK Watch Glasses, 3" (7.5cm) - Cover Lids for Beakers & Flasks - Evaporation Dish Subcategory_Zoology Models (20) sterile petri dishes (2)

(20) sterile petri dishes (2) prepared nutrient agar (200

Used as a yellow-to-blue pH indicator covering the 6

Basic 15-slide set pairs common plant and animal tissue preparations for short-unit microscopy coursework in middle school and early high school

Spark in 20mm

12PK Watch Glasses, 3" (7.5cm) - Cover Lids for Beakers & Flasks - Evaporation Dish Subcategory_Zoology Models (20) sterile petri dishes (2)STURDY GLASS Concave beaker covers (also known as watch glasses) made with quality glass. Each cover features ground edges & polished surfaces for safe handling. The 2. 0mm glass thick construction resists shattering 12 PACK Set includes twelve covers, each measuring 3" (7. 5cm) in diameter VARIETY OF USES Can be used for a variety of laboratory functions ideal for covering beakers and flasks, but can also be used to hold small samples for observation