Best in 7 days
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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
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Description
M12 x 40mm PENNY WASHER (A2 STAINLESS STEEL) - Box of 200M12 x 40mm Penny Washers are a type of flat washer. The name comes from the resemblance to a penny. Like other flat washers they are used to distribute the load of a screw or bolt over a wider surface area. The load spreading prevents damage to the material being fastened to. They are particularly effective on thinner or softer materials like sheet metal or wood. Function: To spread the force of a fastener over a larger surface area, protecting the
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 664 reviews
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Product Reviews
★★★★★ 5
Very good brush and system!
This toothbrush exceeded my expectations.
The charging base is a well thought out system that includes a charging base, a cup for rinsing and a slot to sanitize your brush with UV light, and the kit also comes with 3 toothbrush heads to start with. The brush itself is powerful and makes my teeth feel really clean, almost like a professional cleaning at the dentist. The pink color is also super cute (a nice plus), and the price is very reasonable, especially if using the coupon for $29 that they run sometimes.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
It works!
I tried these on my teenage son who has pretty yellow teeth after braces. You can’t really tell in pics but in person they made a difference. He hasn’t had any odd side effects or sore gums from using them and said they were easy to use. He wears them for the recommended amount of time although started lower the first time to make sure he wasn’t allergic or anything. But so far great product and we are happy with it!
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Reviewed in the United States on February 1, 2026
★★★★★ 4
Work about as well as drugstore brands.
These are at least as good as the national brands at a fraction of the cost. They stick on easily and used as directed will whiten your teeth a few shades over the course of treatment.
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Reviewed in the United States on December 5, 2025
★★★★★ 2
Combersom
Cumbersome, does not hold 3nough water
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Reviewed in the United States on May 25, 2026
★★★★★ 3
Mixed Results
These strips fit comfortably and don’t slide around, which I appreciated. They are gentle on my gums and enamel, and I noticed a slight improvement in brightness after consistent use. That said, they aren’t as strong as some other whitening strips on the market, so if you’re looking for dramatic results you may be underwhelmed. Good for subtle whitening.
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Reviewed in the United States on October 2, 2025
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