US$ 39.95
Triple-parallel plastic pulley with three 50mm wheels on a steel frame with end hooks
Polyhedral 120mL glass alcohol lamp ships with a metal cap and fiber wick for low-temperature bench heating in chemistry and biology demonstrations
and laboratory procedures
Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs
Female Pelvis Model, Hand-Painted Pack Size_50 Triple-parallel plastic pulley with threeHand painted female pelvis model exposes ilium, ischium, pubis, and sacrum bones with articulations, supporting skeletal anatomy teaching in health coursework.