3-Finger Vinyl-Coated Dual-Adjustable Extension Clamp with Swivel Boss Head, 2.3" Max engine models Pivoted needle-style electroscope that swings

Pivoted needle-style electroscope that swings on its axis when a charge is applied

and radial symmetry for marine biology teaching

Three-part medical-quality human skull model with a removable calvarium and articulated mandible

Integrated tongue and dentition at 2x life size supports combined teaching of oral cavity anatomy

3-Finger Vinyl-Coated Dual-Adjustable Extension Clamp with Swivel Boss Head, 2.3" Max engine models Pivoted needle-style electroscope that swingsHeavy duty spring loaded three finger jaw with dual screw fine adjustment mounts on a swivel boss head accepting 18mm rods, opening to 2. 3 inches for condensers and flasks.