Upper and Lower Jaw Model, 3X Enlarged Material_Metal 1 accuracy with a calibration

1 accuracy with a calibration screwdriver and case

9-piece hydro distillation kit holds 250mL with 19/26 joints in borosilicate glass for steam distillation and essential oil extraction procedures

demonstrating conservation of momentum and energy through ball-to-ball collisions

letting students directly observe pressure-volume changes under stacked weights

the precision standard for Kelvin-bridge work

Upper and Lower Jaw Model, 3X Enlarged Material_Metal 1 accuracy with a calibrationThree times enlarged upper and lower jaw set reveals dental arcade geometry and root positions at scale, supporting orthodontic and occlusal anatomy teaching.