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Mainstays

Mainstays - Sage Round Plastic Tumbler, 18-Ounce

4.7 stars out of 1790 reviews
(4.7)|
1,790 ratings
Mainstays - Sage Round Plastic Tumbler, 18-OunceMainstays Sage Round Plastic Tumbler 18 OunceMainstays Dark Blue Round Plastic Tumbler 18 OunceMainstays Cream Round Plastic Tumbler 18 Ounce10 pack Mainstays Dark Blue Round Plastic Tumbler 18 Ounce10 pack Mainstays 18 Ounce Plastic Tumbler GrayMainstays 18 Ounce Plastic Tumbler Gray
Actual Color:Green
Gray, $0.50
selected, Green, $0.50
Blue, $0.50, Out of stock
Cream, $0.50, Out of stock
Pack Size:Single

Key item features

  • Versatile Use: Ideal for indoor or outdoor use, perfect for everyday dining and parties.
  • Dishwasher Safe: Safe for use in the top rack of your dishwasher for easy cleaning.
  • BPA-Free Material: Made from family-friendly BPA-free Polypropylene plastic.
  • Microwave Safe: Conveniently microwave safe for reheating beverages.
  • Trendy Colors: Available in fun, fashion-forward colors to match your style.
  • Durable Design: Durable and reusable, suitable for both kids and adults.
  • Contemporary Finish: Features a smooth matte finish for a modern look.
  • Coordinated Dining: Matching dinner plates and bowls available for a cohesive dining set.
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Current price is $0.50
Price when purchased online
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About this item

Product details

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Customer ratings & reviews

4.7 out of 5 stars
stars1,790 ratings327 reviews
How item rating is calculated
  1. 5 stars84% (1,509)
  2. 4 stars9% (153)
  3. 3 stars3% (58)
  4. 2 stars1% (18)
  5. 1 star3% (52)

Reviews summary

Pros
  • : Made with thick material that withstands regular use.
  • : Holds average drink amounts comfortably.
  • : Available in a range of bright and bold shades.
  • : Holds a good amount of water or beverage.
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Customer photos

  • +29 images
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Showing 1-3 of 327 reviews

Sep 6, 2025
Jess
Item details
Color: Gray
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I love these cups!

These cups are versatile, easy to clean, easy for children to hold without slipping and they hold 18 oz. Great price for a well-made product. I bought 10 to replace some of our older cups. Definitely recommend, and I'll probably buy more in a different color!

Helpful?5GPC1VGMXAHI5477021898
Oct 12, 2025
Mark
Top Reviewer
Item details
Color: Blue
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Cost-effective

We were spending quite a bit of money monthly for styrofoam cups. We use these for our clients to keep and re-use. It saves us a lot of money, plus is better for the environment. We have the clients use an acrylic/oil based marker and put their name on them. The clients can be very creative. They are perfect size for a cup of coffee as well as a cold drink. Price-wise they pay for themselves. They are sturdy and don't tip over as easy as the other cups. Very pleased.

Helpful?5GPC1VGMXAHI5477021898
Dec 18, 2025
Frederick
Item details
Color: Blue
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Great size for the price

Super simple product. Served its purpose, and everyone was able to eat Thanksgiving with a beverage. Excellent. Make sure to take the sticky label off the bottom before washing or using.

Helpful?5GPC1VGMXAHI5477021898