Muck-Off Secure Tag Holder 2.0 Description: The Muck-Off Secure Tag Holder offers a unique way to install a tracker onto your bicycle frame using the bottle cage mounting holes, so you can track and locate your bike in the event of theft. Secure Tag Holder 2.0 now features slotted bottle cage mounts which are designed to work with most existing standard bottle cage mounts (64mm spacing) and offer more adjustability. Note: Apple Air Tag not included and must be purchased separately. Features: Designed to house a tracking tag that can be traced in the event of theft Machined aircraft grade 6061 aluminum body Fits securely under your bottle cage Slotted bottle cage mounts Compatible with Apple AirTags (Sold separately) Included: Secure Tag Holder (2) T25 25mm Security Bolts Security Key