Round domed glass (outer diameter 45–200 mm) Key benefits Multirole component: functions as a watch glass, a flask cover, or an evaporating dish so you need one part for multiple tasks. Size range for compatibility: available in outer diameters from 45 mm to 200 mm to match common flask openings and typical watchmaking workspaces. Reliable under temperature change: engineered to resist thermal shock, reducing breakage during heating and cooling cycles. Longlasting and low maintenance: durable glass construction that cleans easily for repeated laboratory or bench use. Clear visibility and controlled evaporation: the domed, transparent shape lets you monitor contents while limiting contamination and evaporation. Why customers need it Consolidates equipment: replaces multiple singlepurpose items with one versatile glass piece, saving bench space and simplifying inventory. Protects delicate work: acts as a cover to prevent dust and spills on small watch parts or samples during repairs and assembly. Improves process control: as an evaporating dish or flask cover it enables controlled solvent evaporation and better observation of reactions or drying steps. Practical attributes Function: watch glass, flask cover, evaporating dish. Compatibility: outer diameters 45–200 mm to fit a wide range of flasks and small work areas. Material: domed glass with durability and thermal shock resistance. Performance: clear visibility, reusable, easy to clean. Typical use scenarios 1) Watchmaking bench — hold small parts during disassembly, use as a temporary cover to keep components from dust and moisture while you work. 2) Laboratory evaporation — use as an evaporating dish for smallvolume solvent removal or as a cover on flasks to limit contamination and control evaporation rates. 3) Sample handling and observation — place specimens under the domed glass for visual inspection, heating cycles, or shortterm storage between processing steps. Specifications summary Shape: round, domed Outer diameter: 45 mm to 200 mm Functions: watch glass, flask cover, evaporating dish Key properties: durable, thermal shock resistant, easy to clean