Product description Key benefits Protects glassware: soft cork cushioning reduces impact and vibration to help prevent piston and round-bottom flask breakage. Stabilizes round-bottom vessels: grooved cork base increases grip and keeps bottles and flasks securely in place during use or storage. Long-lasting support: resilient cork resists deformation with repeated use, providing reliable support for laboratory pistons and bottles over time. Versatile compatibility: designed to work with laboratory pistons, round-bottom flasks, bottles and standard ring-style holders as a cork pad or mat ring holder. What it does (functions and features) Piston with cork base: provides a cushioned seating surface for pistons and plungers; serves as a cork stand or cork pad to protect glass and maintain alignment. Round bottom holder: cradles the curved base of round-bottom flasks and similar vessels to reduce rolling and shock transmission. Bottle shelf made of cork with grooved base: the grooves improve friction and grip on smooth surfaces, increasing stability for bottles and flasks placed on benches or shelves. Cork stand ring: a durable cork ring that resists compression and deformation for repeated placement and removal of laboratory bottles. Material and performance Material: natural, soft cork that absorbs shock and cushions delicate glassware. Performance: shock absorption reduces breakage risk; grooved base enhances anti-slip performance; cork structure endures frequent laboratory use without losing shape. Compatibility and use Compatible with laboratory pistons, round-bottom flasks, bottles and other glassware that require a soft, stable support or protective pad. Functions as a piston cork pad, round-bottom holder, mat ring holder, or general cork stand for bench and storage use. Practical application scenarios Routine lab work: place the cork stand ring under round-bottom flasks during heating setup or cooling to keep the vessel stable and protect the bench surface. Sample handling and storage: use the piston cork pad when inserting or storing pistons and plungers to cushion glass and reduce breakage during handling or transport. Teaching labs and demonstrations: provide secure, non-slip support for glassware used in student experiments where repeated placement and removal occur. Why choose this cork solution Simple, proven protection and stabilization for delicate laboratory glassware. Natural cork offers cushioning, grip and durability without adding complexity to your workflow. Suitable as a bench accessory or as part of standard glassware handling and storage practices.