★★★★★ 5
size and quality are excellent
Just the right size for our little dog.
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Reviewed in the United States on December 1, 2025
Graphene on Ultra-flat Thermal SiO2 Substrate
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Graphene on Ultra-flat Thermal SiO2 SubstrateCrystalline Structure of Graphene Film HAADF Image of single layer Graphene (bar = 1nm) on Holey Silicon Nitride product. Ref: J. Kotakoski, et. al. Nano Letters, 2015 Graphene on the #21620 55 Ultra flat Thermal SiO2 Substrates is offered to use as a research ready experimental platform. The graphene sheet covers the complete 5x5mm diced substrate. Total usable area is approx. 75% due to unavoidable folds and wrinkles in the graphene sheet. Available
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.9 ★★★★★
Based on 2180 reviews
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Product Reviews
★★★★★ 4
Deceptive Advertising
There's a little bit of false advertising going on here unless you thoroughly read the description. There are three balls in the picture, but you are only purchasing two. Always read the whole description before buying!
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Great for indoor fun!
Dog loves it.
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Reviewed in the United States on March 11, 2026
★★★★★ 1
Not the same rubber.
I just received these today. I already have two of the same size direct from the local pet store. The one thing I liked about them that made me want to buy more - my 13lb dog could chew on them all night and never leave a mark. The red one I received was as expected. The blue one I received was not made out of the same rubber. It was softer. We played catch a few times and it didn’t bounce the same. I looked away for 5 minutes and she had it already starting to shred. Not sure what happened but 1 of the 2 balls I was sent was not up to par, possibly defective.
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Reviewed in the United States on May 23, 2024
★★★★★ 5
Great
Size: Medium, Number of Items: 1
I need something that was soft for my three year old and this ball is super great, it not only is the right size but it also fits in his mouth just right. Although he is a super aggressive chewer, the ball toy hasn't been totally destroyed yet and it is easy on his gums. The ball is so durable that got two of these toys just for fun.
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Reviewed in the United States on May 10, 2026
