Telescopic Pond Nets British Pores in the membrane are

Pores in the membrane are small enough to prevent the passage of large molecules (such as starch and sucrose) but allow smaller molecules (such as glucose) to pass through by diffusion

These ready prepared sterile 90mm petri-dish plates are a valuable time saver

stir whilst heating to dissolve

whereby they must produce labelled drawings complete with a magnification scale

whilst inhibiting bacterial growth

Telescopic Pond Nets British Pores in the membrane areA safe and durable pond net with telescopic aluminium handle. Features a knotless fine mesh which will not harm specimens and is guaranteed not to run if holed. Available individually or as a great value pack of 5. Handle extends from 50cm to 1m. Net opening: 20cm x 20cm