Pressure Toadstools

A set of 5 clear, square section, acrylic rods ranging from 6 to 15 mm side. Each rod is 10 cm long with a securely fastened top platform to support applied loads and the square section design makes area calculations simple. Unlike wooden dowels the acrylic does not absorb water and is far more durable. Supplied in a vacuum-formed tray, which can be used to hold the moist sand during the investigation.

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