Compatible model: Arlo HD, Arlo Pro, Arlo Pro 2, Arlo Pro 3, Arlo Pro 4, Arlo Ultra, Ring Stick Up Cam Battery, Eufy 1&2/ 2C/ 2C PRO/ E. Modelfor Arlo, Ring Stick Up Cam, EufyCam. Fits both Round pillar, railing, wall and ceiling mount installation, durable and convenient.
eBay