Micro-compact enclosure for RileyLink, a Bluetooth bridge so that an iPhone can talk to a Medtronic insulin pump using the Loop app:
Complete enclosure with both top and bottom. No electronics included.
This enclosure is designed to be as small as possible, but durable, and with the antenna visible for the highest possible signal strength. The threaded connection has a brass insert to allow for removal and re-insertion without stripping.
Comes with M2x0.4 screw and key-chain ring, but you will need a small Philips screwdriver.
Other assembly instructions: