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Sale Price $33.21.
Original Price $36.90 Comp. value
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I'm Not Operating On Empty Just Operating On Krebs Case-Mate iPhone Case
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Barely There
+$5.30
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I'm Not Operating On Empty Just Operating On Krebs Case-Mate iPhone Case
Ever wonder how you get through the day? Showcase your wry Krebs cycle (also known as citric acid cycle or tricarboxylic acid cycle) sense of humor with this scientific attitude iPhone 13 case featuring the saying: "I'm Not Operating On Empty Just Operating On Krebs". Biochemistry truism iPhone 13 case for anyone who knows that the Krebs cycle produces one's own energy! No need to be a runner or a jogger to showcase your educational sense of style with this smartphone case.
Customer Reviews
4.7 out of 5 stars rating6.5K Total Reviews
6,518 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Yvette F.June 12, 2025 • Verified Purchase
Case-Mate Phone Case, Apple iPhone 13, Barely There
Great quality and very well made. Looks vibrant and stands out. I’ve dropped it about 25 times and it has not cracked and or scraped up. .
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Irina Y.September 20, 2023 • Verified Purchase
Case-Mate Phone Case, Apple iPhone 13, Barely There
Creator Review
Perfect colors, fit my phone nicely, unique design. Super clear and colorful print, nice gloss
5.0 out of 5 stars rating
5 out of 5 stars ratingBy Cyn M.August 23, 2023 • Verified Purchase
Case-Mate Phone Case, Apple iPhone 16, Barely There
Zazzle Reviewer Program
Looks exactly like it was shown on the order. Perfect -Perfect exactly as shown
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Product ID: 256425868600866060
Created on: 2/11/2023, 3:13 AM
Rating: G