Question 1

How to add insuliin to syringe?

Accepted Answer

Same as all other syringes.

Question 2

Do you ship them in the box? Or do you just ship in a big bag?

Accepted Answer

It arrive in the box pictured. Each syringe is wrapped in a Sterile package.  All in all it did surprise me how well they were packed. 
Made in China of course

Question 3

Discreet shipping?

Accepted Answer

The box arrived inside an Amazon box with my other items ordered.

Question 4

Will they be shipped discreetly?

Accepted Answer

It is not exactly what I'd call "discreet".
However, the box won't show up the way you see it here, in the pictures. It is shipped in one of two ways (I have ordered this exact product, & from the same seller as well, many times over the past year,). 
It will either be concealed in a gray plastic shipping material, sort of like a plastic bag. Don't worry, though: you can't see through it. You have to rip or cut open the plastic to see the contents. It will display the shipping label, with your name and address or whatever details you enter for the recipeiant. 
Or, it will come in your typical packaging when receiving products from online vendors: a small cardboard box that also has the shipping label with your information on it. 
Upon opening either packaging, there is not much to conceal the contents in terms of packing material (EX: bubble wrap,). You'll see the box, as you see it in the pictures, immediately. 
There are ways to make the delivery more descreet, however. 
1. You can change your shipping preferences: write that you prefer the delivery person to place it in your mailbox, or in a certain area on your front porch/by your door (EX: under a chair,).
2. You can track the package: as it goes through the delivery process, you can check your account and the order's status, down to about 30 minutes, give or take. This way, you can be prepared when it arrives and get to the package right away.
3. The delivery person will not knock on your door, at least in my experience, when it is delivered. You'll receive an email/text/notification when it arrives by changing the settings of the Amazon app in your phone.
Hope this helps you to avoid any potential problems, & still order what you need.

ASIN	B07PPQ9FYD
Best Sellers Rank	#15,566 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #228 in Lab Sample Injection Syringes #231 in Lab Chromatography Supplies
Brand	BRANDZIG
Brand Name	BRANDZIG
Customer Reviews	4.2 out of 5 stars 5,202 Reviews
Item Volume	1 ml
Material	Plastic
Number of Items	1
Set Name	BRANDZIG 100-Pack Syringes
Sterile	Sterile
Sterility Rating	Sterile
UPC	860159001873
Unit Count	100 Count

Brandzig Syringes 31G 1cc 5/16" 100-Pack

Details

Details

Description

Specifications

Common Questions