ULTECHNOVO Physics Teaching Aid 2pcs Teaching Instrument Electricity Teaching Aid Electric Bell for Laboratory Toy Primary School
by ULTECHNOVO
- Electric bell for laboratory: put education in fun, cultivate scientific knowledge. perfect for any home, school, or laboratory., Experimental electric bell: portable design and compact size, easy to carry and store. it will meet your needs!, Physics experiment electric bell: made of premium plastic and iron materials for and use., Physics laboratory supply: made of premium plastic and iron materials for and long lasting use., Practical electric bell: adopts precision production to stable characteristics and high reliability.