• Electrical discharge machine display-- this desktop toy is small, light, and easy to carry, can take it with you wherever you go.
• toy-- this desktop is small, light, and easy to carry, can take it with you wherever you go.
• transmission system-- with transmission function, can light gaseous tube and kind of bubbles.
• Desk experiment toy-- not only a teaching tool, but a multi-functional toy for good viewing. great for your choice.
• electronic toys-- the electric arc generator toy adopts design. no grounding needed and no audio wire connection.