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Sale Price $8.25.
Original Price $13.75 Comp. value
per keychain
You save 40%
1 To 5 Quadrillion Synapses Inside (Neuron) Keychain
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Style
Aluminum Circle
+$3.55
+$3.55
+$17.55
+$17.55
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1 To 5 Quadrillion Synapses Inside (Neuron) Keychain
No need to be a neuroscientist or neurologist to know that there are probably between 1 to 5 quadrillion synapses within you. Educational, scientific attitude on any of these gifts featuring the neuron / synapse, along with the saying "1 To 5 Quadrillion Synapses Inside". Showcase your multitude of neuronal connections with any of these gifts!
Customer Reviews
4.6 out of 5 stars rating5.4K Total Reviews
5,402 Reviews
Reviews for similar products
5 out of 5 stars rating
By Ali Y.February 4, 2026 • Verified Purchase
Aluminum Circle, 2"
Lovely & cute keychains i love them thank you sooo much ,they also reached to me soo fast 😍.
5 out of 5 stars rating
By linda f.June 18, 2025 • Verified Purchase
Premium Round, Small (1.44")
So cute and this is perfect!!!
5 out of 5 stars rating
By V.August 21, 2023 • Verified Purchase
Zazzle Reviewer Program
Beyond expectations. Choice of artwork is overwhelming, I found exactly what I needed from SJW_Graphics. Detail, colors, overall design looks great on this keyring. Could use as a pendant, purse charm, bookmark, too! Metal is sturdy without being heavy. Colors beautiful, with clear margins. Customized name makes this gift extra special. So many fonts, so many colors & sizes!
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Other Info
Product ID: 146878410769820106
Created on: 11/19/2009, 11:22 PM
Rating: G
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