Review on Large 20oz Glass Tea Infuser Bottle - Double Walled Tea Tumbler with Strainer for Loose Leaf - Borosilicate Glass Tea Infuser Mug with Sleeve Carrier, Leakproof - by ONEISALL by Tammy Thomas

I have been using the bottle for over 3 months now. It comes with a padded, protective carrying case and a very mild and handy bottle cleaner. The opening is wide enough to easily empty and fill the bottle with tea, water, etc. for brewing. It's all glass and quite large (I have the 800ml version) so handle clean and with care. This is a very useful product and appears to be very well designed. The follow-up and sincerity of the company's customer service are commendable.