A piece of very thin paper tissue (actually Whatman lens cleaning tissue - used for cleaning microscope lenses without scratching) viewed by polarised light microscopy. The crystals that form the fibres due to their regular arrays interfere with the light path and 'twist' the light to give the colours shown.
Silver coloured high quality metal keyrings with a colourful dye-sublimation printed picture of a microscope image on one side that gives a durable and scratch resistant finish.
Keyrings measure 42x25mm (measured without including ring).
Supplied in a presentation box with a label describing the image.
Free UK delivery on orders over £10 (£1 delivery charge for orders below £10).
Delivery charges for overseas orders are calculated in the shopping basket.
Please note these keyrings are printed to order so will be despatched within 4 working days of order being received.