Typical Plant Cell Model on Plastic Base Length_50mm Hand-painted fracture-and-fault model demonstrating normal

Hand-painted fracture-and-fault model demonstrating normal

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

Transformer activity set with a plastic base

Transparent rectangular glass jar measures 25 x 15 x 15cm for specimen display

Typical Plant Cell Model on Plastic Base Length_50mm Hand-painted fracture-and-fault model demonstrating normalTypical plant cell model on a plastic base exposes cell wall, vacuole, nucleus, and chloroplasts for introductory cell biology and botany teaching.