Borosilicate Glass Expansion Adapter Joint Size:14/23/19/26 supporting up to three pendulums

supporting up to three pendulums simultaneously for harmonic-motion work

Multiple-connection receiver adapter in borosilicate glass features 14/23 socket for connecting multiple apparatus components in chemistry setups

sized for the higher-resistance end of student voltage-divider and current-control investigations

Prisms will create a nice rainbow (even in room light) by using the simple led light of a smart phone

Mounted Venturi tube demonstration apparatus with small-bore pressure ports and two clamps

Borosilicate Glass Expansion Adapter Joint Size:14/23/19/26 supporting up to three pendulumsMates mismatched ground glass joints so apparatus from different kits can share a single condenser or flask, bridging standard socket and cone size combinations.