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Serotonine Key Ring

Serotonin is a neurotransmitter that plays a role in mood, memory, sleep and cognition. Our Serotonin is based on the shape of the actual molecule!

Length of the mini microbe: about 9 cm.

Warning. Not suitable for children under 36 months. Small parts. Choking hazard.

This item is currently no longer in production. Starting from approx. 800 pcs, we can produce a new batch for you. Delivery time will be 5-9 months. Please ask us about conditions.
Caffeine Key Ring
How long can YOU go without it? Length of the mini microbe: about 6 cm. Warning. Not suitable for children under 36 months. Small parts. Choking hazard.
DE
9.95 EUR plus shipping
Out of stock. We do not have a delivery date yet.
Chocolate Key Ring
Irresistibly delicious! Length: approx. 6 cm. Warning. Not suitable for children under 36 months. Small parts. Choking hazard.
DE
9.95 EUR plus shipping
Ships immediately
Antibody Key Ring
Antibody Key Ring
(Immunglobulin)
DE
9.95 EUR
COVID-19 Key Ring
COVID-19 Key Ring
(SARS-CoV-2)
DE
6.95 EUR
COVID-19 Vaccine Key Ring
COVID-19 Vaccine Key Ring
(SARS-CoV-2)
DE
6.95 EUR
Key Ring Diplodocus Skull
Key Ring Diplodocus Skull
(Diplodocus)
EN
9.95 EUR
Small Intestine Key Ring
Small Intestine Key Ring
(Intestinum tenue)
DE
6.95 EUR
E. coli Key Ring
E. coli Key Ring
(Escherichia coli)
DE
9.95 EUR
Uterus Key Ring
Uterus Key Ring
DE
9.95 EUR
Brain Cell Key Ring
Brain Cell Key Ring
(Neuron)
DE
9.95 EUR
Graduation Brain Cell Key Ring
Graduation Brain Cell Key Ring
(Neuron)
DE
9.95 EUR
Heart Key Ring
Heart Key Ring
(Cor)
DE
9.95 EUR
Caffeine Key Ring
Caffeine Key Ring
DE
9.95 EUR
MRSA Key Ring
MRSA Key Ring
(Staphylococcus aureus)
DE
9.95 EUR
Nerve Cell Key Ring
Nerve Cell Key Ring
(Neuron)
DE
9.95 EUR
Key Ring Pteranodon Skull
Key Ring Pteranodon Skull
(Pteranodon)
EN
9.95 EUR
Key Ring Saber-Toothed Tiger Skull
Key Ring Saber-Toothed Tiger Skull
(Smilodon)
EN
9.95 EUR
Skull Key Ring
Skull Key Ring
(Cranium)
EN
7.95 EUR
Chocolate Key Ring
Chocolate Key Ring
DE
9.95 EUR
Key Ring Stegosaurus Skull
Key Ring Stegosaurus Skull
(Stegosaurus)
EN
9.95 EUR
Pox - Syphilis Key Ring
Pox - Syphilis Key Ring
(Treponema pallidum)
DE
9.95 EUR
Key Ring T. rex Skull
Key Ring T. rex Skull
(Tyrannosaurus rex)
EN
9.95 EUR
Key Ring Triceratops Skull
Key Ring Triceratops Skull
(Triceratops)
EN
9.95 EUR
Key Ring Woolly Mammoth Skull
Key Ring Woolly Mammoth Skull
(Mammuthus primigenius)
EN
9.95 EUR

About GIANTmicrobes

  • GIANTmicrobes are plush organisms and cells, only a million times actual size! Humorous, educational, collectible, fun!

    Each microbe includes a printed card with fascinating facts. Unless otherwise stated, they are suitable for children of all ages. Recommended age: 3 years and up.

    Material: Polyester fibres, surface washable.

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Copyright © 2004-2025 Tobias Dietrich Spielwaren, GIANTmicrobes, Inc.