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 Trays Form Perfectly to Each Tooth (4 Trays)

Product ID: 44456822

Details

Brand
Whiter Smile
Item Form
Tray
Material Type Free
Bisphenol A
Number of Items
1
Product Benefits
Whitening

🦷4 custom-fit trays for upper & lower teeth

♻️BPA-free, safe thermoform material

🛡️Thin yet durable for all-day comfort

78.57 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Smile Bright, Shine Right 🦷

SAFE SUSTAINABLE - Crafted from BPA-free materials, ensuring a toxin-free whitening experience you can trust.
COMPLETE WHITENING KIT - Includes 4 trays plus a sleek storage case—ready for multiple treatments or sharing the glow.
COMFORT MEETS PERFORMANCE - Thin, non-bulky design means you can whiten discreetly without discomfort or gagging.
PRECISION FIT EVERY TIME - Custom moldable trays contour perfectly to your unique smile for maximum whitening coverage.
EFFORTLESS AT HOME BRILLIANCE - DIY whitening made simple with easy-to-follow instructions, no dentist visit required.

Whiter Smile Labs Teeth Whitening Trays offer a professional-grade, at-home whitening solution with 4 BPA-free, thermoform trays that mold precisely to your teeth. Designed for comfort and effectiveness, these thin trays ensure even gel application and a discreet fit, making it easy to achieve a brighter smile without bulky, uncomfortable devices.

Specifications

ASIN	B01N8S1ESE
ASIN	B01N8S1ESE
Age Range Description	Adult
Best Sellers Rank	#15,410 in Health & Household ( See Top 100 in Health & Household ) #18 in Teeth Whitening Kits
Brand Name	Whiter Smile Labs
Customer Reviews	3.9 3.9 out of 5 stars (5,624)
Date First Available	November 15, 2016
Flavor	Unflavored
Included Components	Mouth Tray
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	4.72 x 2.95 x 1.85 inches; 2.08 ounces
Product Benefits	Whitening
Set Name	Whiter Smile Labs Thin Teeth Whitening Trays
Unit Count	5.00 Count

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