4-Prong Cork-Lined Retort Clamp with Boss Head, 90mm Capacity Light & Optics_Reflection & Refraction gripping cylindrical items from 15

gripping cylindrical items from 15 to 60 mm alongside an integrated boss head for retort rods

Twelve-slot natural wood buret rack organizes vertical buret storage and simultaneous titration setup in chemistry and analytical laboratory classrooms

this concave glass mirror at 100mm focal length runs at f/1 for vivid real-image demos and converging-reflection work

Large-format 8

4-Prong Cork-Lined Retort Clamp with Boss Head, 90mm Capacity Light & Optics_Reflection & Refraction gripping cylindrical items from 15Four prong cork lined retort clamp with an integrated boss head, gripping objects up to 90 mm and mounting to support rods up to 15 mm for chemistry and physics setups.