New shipment arrived.  Although we re-stocked 3x22.5mm green and 3.5x25mm green vials, 3x22.5mm green (T3G) did not come in sufficiently.  We will get more but it will need 3-5 weeks to get them.  Daniel  Jan. 19, 2019
Post office clerk advised on Jan. 9, 2019 that their HQ received an official notification letter from USPS on Jan. 8th that west coast mail center is facing a critical issue of manpower shortage.  So recent shipments heading to west coast  might take a few more days longer than ordinary time frame.
....Daniel Jan. 10, 2019
If you wish to track your shipment online, please choose $10 or $28 option.  $5 option gives you a tracking number of RAxxxxxxxxxTW which can ONLY be tracked by staff of your local post office after we apply for tracking service with a paper form presented to our post office officially.  And it takes time to get feedback.  Although $2 and $5 (both NOT available for one country) can not be tracked online, they are still quite reliable.  PLEASE kindly be notified and choose your shipping method carefully.
If you must add something to your previous order which we have not shipped out yet, please give us a note on your 2nd order especially when you are ordering twice with same items, quantities and colors.  That gives us the impression of a possible error at your end by doing the ordering process twice as you thought your first attempt failed.  We encountered this case before.  So whatever identical order came in without any note will be treated as accidentally-released double order and be canceled and refunded from our side.
Thanks,
Daniel

Remark: Normally we ship out your order within 24 hours after our receipt of your order and payment.  Our post office does not work on weekends, so any order comes in on weekends will be shipped out on Monday.
Please kindly double check your shipping address while you check out.  We can not verify if your shipping address is complete or not especially there should be an apartment number, suite number...etc.
Thanks,
Daniel
Updated 6/16/2016
As there are quite a few customers asking for "DO NOT SIGN FOR PACKAGE", we decide to re-offer the $2 unregistered shipping option for order amount less than $50. But please read the following term carefully.
$2 Unregistered air parcel shipping is a cheaper method which does not require signature upon delivery.  There is no proof of shipping.
Therefore, by choosing $2 unregistered air parcel, you waive your right of filing a chargeback due to lost shipping.  You are fully aware of and agree to the sales terms.  We reserve the right to take your order or not.
Gaseous Tritium Light Source (GTLS) is a light source that does not require any power input to provide continuous illumination in darkness for more than 10-15 years.  It is ideal light source for all kinds of safety signs or emergency devices.  The markers we offer are great and recommended for attaching with your vital equipments or personal belongings to be visible and found in total darkness.

WELCOME   We carry tritium vials and also produce acrylic, stainless steel / titanium markers, few titanium items and accessories. Please enjoy your stay here. Thanks.
The inventory listed on vials and related markers may not be 100% accurate as sometimes they are taken faster than we expected.  If you have any question, please use Contact Us form to let us know.

Tritium vial brightness chart
These are the COLOR CODES we use.
And the right chart from vial maker provides the data of brightness, for reference only.
G - Green (Based on Green as 100%)
I - Ice Blue (60%)
Y - Yellow (80%)
R - Red (20%)
O - Orange (40%)
U - Purple (30%)
P - Pink (40%)
W - White (60%)
B - Blue (15%)