Where are these made?

I searched for info on this company, it appears they are a dental lab located in Ft Myers, FLA. That's why orders can take 3-5 days to arrive (5 for the West coast). On back of box for the pictured tray set, is the "Made in USA" logo, complete with American flag. Zoom in to see clearly.

Are they big enough for an adult?

They work fine for adults & will not cover molars. These are whitening trays. They are only meant to be used to whiten teeth and worn for a short period of time. If you need a nightguard, don't buy these. :)

which is top and bottom?

They are universal. - it does not matter

How long do the directions say to leave trays/gel in your mouth?

If you mean, while moulding them to your teeth: Just until they cool and have set to your teeth shape. If you mean when they're loaded with bleach: I wear mine about 60 minutes.

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Whiter Smile Labs Teeth Whitening Trays - BPA Free, Thin Moldable Mouth Tray Fits Perfectly to Each Tooth - 4 Trays

Whiter Smile Labs Teeth Whitening Trays - BPA Free, Thin Moldable Mouth Tray Fits Perfectly to Each Tooth - 4 Trays

Product ID: 635376499

Details

Age range (description)
Adult
Brand
Whiter Smile
Flavour
Unflavoured
Included components
4 x Mouth
Item form
Tray
Item weight
0.13 Pounds

👜Includes sleek storage case

🦷4 moldable trays for perfect fit

♻️BPA-free safe material

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₩72773

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Smile Brighter, Shine Smarter 🦷

SAFE NON TOXIC - Crafted from BPA-free thermoform material, ensuring a health-conscious whitening experience.
TRAVEL READY DESIGN - Compact and lightweight, perfect for busy professionals who want to whiten on the go.
CUSTOM MOLDED COMFORT - Thin, form-fitting trays contour precisely to your teeth for all-day comfort without bulk.
COMPLETE WHITENING KIT - Includes 4 trays (upper & lower sets) plus a stylish case to keep your smile essentials organized.
DIY PROFESSIONAL RESULTS - Achieve a brighter smile at home with easy-to-use trays designed for optimal gel application.

Whiter Smile Labs Teeth Whitening Trays offer a professional-grade, at-home whitening solution with 4 BPA-free, thin, moldable trays that fit snugly to your teeth. Designed for comfort and effectiveness, this kit includes upper and lower trays plus a convenient storage case, empowering you to achieve a radiant smile anytime, anywhere.

Specifications

ASIN	B01N8S1ESE
ASIN	B01N8S1ESE
Age Range Description	Adult
Benefits	Whitening
Best Sellers Rank	56,077 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 106 in Teeth Whitening Kits
Brand Name	Whiter Smile Labs
Customer Reviews	3.5 3.5 out of 5 stars (5,352)
Customer reviews	3.5 3.5 out of 5 stars (5,352)
Flavour	Unflavoured
Included Components	4 x Mouth Trays, Pouch, Extra Whitening Trays
Is discontinued by manufacturer	No
Item Form	Tray
Item Weight	0.13 Pounds
Item model number	WSL-TC-2
Manufacturer	Whiter Smile Labs
Manufacturer	Whiter Smile Labs
Manufacturer Part Number	WSL-TC-2
Material Features	BPA Free
Material Type Free	Bisphenol A Free
Model Number	WSL-TC-2
Number of Items	1
Package Dimensions	12 x 7.5 x 4.7 cm; 58.97 g
Set Name	Whiter Smile Labs Thin Teeth Whitening Trays
Unit Count	4.0 count

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The product exactly matches the description. Very satisfied with my purchase.

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