Wormery for showing students the burrowing behaviour of earthworms. Comprises of a vertical support frame carrying two panes of glass 25mm apart with slots immediately outside the glass panes to hold card blackout sheets. MDF finished in Black. Sliding light shield panels to front and rear. Toughened glass with ground edges.Glass Panes: 300mm x 200mmOverall Dimensions: 340mm x 225mm x 55mm