Model, Urinary System, 3D (Each) Polydron 300mm deep ground sockets with

300mm deep ground sockets with integral flush fitting lids

easy way to roll dice for games and maths learning

Use the included screwdriver to design your own robot with the coloured plastic bolts

Transportable and easy-to-use

26 x 2-piece puzzles

Model, Urinary System, 3D (Each) Polydron 300mm deep ground sockets withUrinary System Model A larger than life size 3D model of the human excretory organs. Allowing students full access from all sides. Made from unbreakable vinyl, the model is free standing. Both kidneys, with their piggyback adrenal glands, major blood vessels, uretors and upper half of the bladder, are included all in their natural relationship to each other. One kidney is sectioned to show the network of filtration and collection tunnels. Major