3-Finger Vinyl-Coated Extension Clamp with 2" Fingers on Swivel Boss Head Safety Supplies_Eye Protection Double-concave glass lens at 3-inch

Double-concave glass lens at 3-inch diameter and 200mm diverging focal length

this silicone-belt Van de Graaff generator demonstrates charge conservation

Male pelvic skeleton model reveals narrower pelvic inlet and robust bone structure for comparative reproductive anatomy teaching

Two variable 0 to 6V DC outputs paired with two fixed 6V/10W and 12V/20W AC outputs on this power supply controller

suspending thermometers above hot plates or fixing specimens in orientation

3-Finger Vinyl-Coated Extension Clamp with 2" Fingers on Swivel Boss Head Safety Supplies_Eye Protection Double-concave glass lens at 3-inchTwo inch vinyl coated fingers on this three finger extension clamp mount to a swivel boss head fitting rods up to 18mm, opening to 3. 4 inches with thread fitted adjustment.