hubbard scientific 2755 clam model activity set
unique model shows exaggerated perspective of a mollusk gill structure as well as cut away section of the shell foot and mantle to reveal internal organs two separate inset diagrams also show the circulatory and nervous system activity set includes a 24w x 18h raised relief model detailed activity notebook with glossary key blackline master and color transparency american educational products have a lead ship time of 21 days sku amed604