15 Piece Sedimentary Rock Collection Face Mask which provide greater depth in

which provide greater depth in an individual subject area and include both a teacher’s guide and student copy masters

providing excellent operating experience

easy and safe operating

so kids know which sides attract and which repel

15 Piece Sedimentary Rock Collection Face Mask which provide greater depth inSpecimens measure 1 1 2 x 1 1 2 inches (L x W). Sedimentary rock collection for geological study. 15 representative sedimentary rock specimens for detailed examination. Number coded with key sheet for identification. Compartmented tray for display and storage. Premium Quality: This item is made of high quality, heavy duty and durable materials. Designed for use in classrooms, household and educational settings. If you need custom order with different