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This fibre nibbed pre-inked pen is specially designed to slip on the end of the arms of chart-recording instruments
energy and motion
Polyester/nylon construction
Plastic domes provided make the planets appear 3d
made by US company Chaney Instruments
Instant Sea Monkeys Digital Thermometer This fibre nibbed pre-inked penSea monkeys (shrimp brine) eggs hibernate without water but add water and they come to life in their hundreds. This carded pack contains food and feeding, but you supply your container (a clear plastic bowl will do. Don't overfeed, but do feed every few weeks. They grow and after 12 months can reproduce. But there's a dark secret they eat each other. Survival of the fittest (greediest).
