This kit focuses on Arthropods. There is one specimen block included ( 5 1/4 x 3 1/2 x 1 in.). Specimens are preserved and encased in clear resin material. They can be observed from every side to see details. Specimen include: Crayfish (Penaeus chinensis (Osbeck)), Grasshopper (oxya chinensis), Centipede (Scolopendra subspinipes) and a Millipede (Spirobolus Bungii). This kit includes its own green box and a Detailed Educational Booklet.