Typical Plant Cell Model on Plastic Base Length_50mm Wall-mounted Mason's hygrometer with two

Wall-mounted Mason's hygrometer with two identical dual-scale thermometers — one dry and one kept wet via a water reservoir — calculating relative humidity from their paired reading difference

seed development

this insulated lead pairs a 4mm banana plug at one end with a crocodile clip at the other for flexible patch wiring

5-inch stainless steel rod with thread-fitted joints for smooth adjustment

Hand-painted fracture-and-fault model demonstrating normal

Typical Plant Cell Model on Plastic Base Length_50mm Wall-mounted Mason's hygrometer with twoTypical plant cell model on a plastic base exposes cell wall, vacuole, nucleus, and chloroplasts for introductory cell biology and botany teaching.