Inside the miniature plastic tube is a gold plated slip ring for 12 wires. There are twelve color coded wire sets made of 28 AWG and no matter how you twist the assembly, they will remain in continuity. Each of the wire sets can carry up to 2A at up to 240VAC or 240VDC. This model is the tiniest slip ring you can get, a mere 20mm long, 12mm diameter. Rated to rotate up to 300 RPM (but you can probably go faster if you don’t mind a reduced life and/or noise).
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.