Schwalbe brand, made in Indonesia, 126g weight, medium length presta valve.                                                        
Note:

We just got in some bulk-packed Schwalbe presta 650B tubes, just like the ones that come in red-and-blue boxes, but no boxes. We had to buy a ton-at-a-time to get them this way, and so we did, saving money in the process. So now our 650B tubes are greener than ever, being box-free, and cheaper than ever, being box-free. Down from $8 to $6. Still more than a $4 bike shop tube, but they  are  Schwalbe, and Schwalbe  is  really good, and never comes cheap.

Mediumish sized tube works with all the 650B tires we sell.