Metal & Alloya Collection these slotted masses are built

these slotted masses are built to withstand frequent use and provide reliable calibration over time

Laboratory Essential: Ideal for laboratory experiments

with 4 mm color coded sockets

Fan with four Solar Cell

Metal & Alloya Collection these slotted masses are builtMetal & Alloya Collection This model can be used as a visual aid in schools for Geology lessons. Premium Quality: This item is made of high quality, heavy duty and durable materials. Designed for use in geology classrooms, household and educational settings. If you need custom order with different sizes design, please contact us. Safely Packaged to avoid being damaged during transportation.