A two-toned ceramic mug featuring a kawaii cute wave of ghosts flying from left to right around the mug, representing a physics pun. The spectrum of electromagnetic waves in physics (e.g. infrared, ultraviolet etc.) can be referred to as spectral waves.
Available on a plain white mug or on a two-toned mug (a white mug with a coloured handle and inside in your choice of colour).
Dishwasher and microwave safe.
Volume: 12fl oz or 325ml (just over half a pint). Height: 9cm. Width (measured across the top of the mug): 8cm.
