★★★★★ 5
Comfort
Color: Champagne, Size: Queen
What a lifesaver, great feel, and awesome cooling feel
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
12B21 Metric Roller Chain Sprocket | 12B21H
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
12B21 Metric Roller Chain Sprocket | 12B21HProduct Details : 12B21 Metric Roller Chain Sprocket 12B21H Part No: 12B21H Product Type: B (Stock Bore) Sprocket Type: Metric Sprocket Chain Strand Type: Single Bore: Stock Bore Chain Size: 12 No. Of Teeth: 21 Pitch: 19. 050mm Pitch Diameter: 127. 82mm Bore Stock: 20mm Bore Max.: 64mm Hub Diameter: 100mm Hub Length Thru Bore: 40mm Material(s): Carbon Steel Hardened Teeth: Yes Avg. Weight (lbs): 5 For any information about products, please contact us.
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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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4.4 ★★★★★
Based on 618 reviews
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Product Reviews
★★★★★ 5
Cool bedding
Color: Champagne, Size: Queen
As advertised nice and soft. But most of all cool. It really stays cool, especially on warm nights. A.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Actually cooling and comfortable.
Color: Royal Blue, Size: King
Incredible cases. Soft, super comfortable and actually cooling as claimed. Highly recommended. Love these!
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Cool
Color: Pink, Size: Standard
Cooling pillowcases work well, don’t wake up sweaty anymore. Very happy with them. Love the material, comfort and softness!
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Reviewed in the United States on June 7, 2026
★★★★★ 5
COOL Pillowcases Worth Buying
Color: Champagne, Size: Queen
I bought these to try out, and I was shocked to find they worked out better than my silk pillowcases. I have atopic dermatitis, and I need a pillowcase that doesn't irritate my skin. I also am having hot flashes and need something cool on my face. These pillowcases are perfect for both my conditions. I plan to buy more in different colors. My sons and husband also like it since they are always hot.
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Reviewed in the United States on May 30, 2026
