12PK Watch Glasses, 3" (7.5cm) - Cover Lids for Beakers & Flasks - Evaporation Dish Subcategory_Zoology Models Permanent-magnet moving-coil meter mounted in

Permanent-magnet moving-coil meter mounted in a transparent wooden box with all internal electrical connections visible

labeled with universal storage codes for quick retrieval

and ready for analytical work

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

12PK Watch Glasses, 3" (7.5cm) - Cover Lids for Beakers & Flasks - Evaporation Dish Subcategory_Zoology Models Permanent-magnet moving-coil meter mounted inSTURDY 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