Chart size 6
Inner Ø16.5 mm
Original chart label; select using the actual fitting sample. [1]
RFID Rings · RFIDAK
Tesla Key Ring Accessory — Sizes & Pairing
This third-party ring-format key accessory has a source size chart numbered 6–15, with labeled inner diameters from 16.5 to 23.9 mm. Vehicle compatibility must be established for the actual credential and vehicle; an NFC ring shape alone does not make a Tesla key.
Updated September 24, 2026
- Chart labels
- 6 through 15; source labels are not asserted as a universal US size standard
- Labeled inner diameters
- 16.5 / 17.3 / 18.2 / 18.9 / 19.8 / 20.7 / 21.5 / 22.3 / 23.1 / 23.9 mm
- Vehicle-key behavior
- Card-key-style tapping is distinct from Bluetooth phone-key proximity behavior
Technical reference
Product specifications
Model-specific data and source scope are shown together.
- Chart labels
- 6 through 15; source labels are not asserted as a universal US size standard [1]
- Labeled inner diameters
- 16.5 / 17.3 / 18.2 / 18.9 / 19.8 / 20.7 / 21.5 / 22.3 / 23.1 / 23.9 mm [1]
- Vehicle-key behavior
- Card-key-style tapping is distinct from Bluetooth phone-key proximity behavior [2]
- Pairing basis
- Owner-authorized pairing following the exact vehicle manual [2]
- Product status
- Third-party accessory; no Tesla affiliation or blanket vehicle approval [1]
Choose a reference
Models & configurations
Choose a model or format to include it in your quote or sample request.
Chart size 7
Inner Ø17.3 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 8
Inner Ø18.2 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 9
Inner Ø18.9 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 10
Inner Ø19.8 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 11
Inner Ø20.7 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 12
Inner Ø21.5 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 13
Inner Ø22.3 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 14
Inner Ø23.1 mm
Original chart label; select using the actual fitting sample. [1]
Chart size 15
Inner Ø23.9 mm
Original chart label; select using the actual fitting sample. [1]
Appearance & construction
Photos & drawings
Open a picture to inspect the original file. Dimensions are taken from the cited references.
Application & selection
Before choosing this product
Does it unlock automatically when I walk up?
Tesla distinguishes its key card from the Bluetooth phone key. A ring functioning as a card-key accessory should not be advertised as providing automatic proximity unlocking simply because it can be enrolled.
What to verify before a fleet order
Record vehicle model, year, software and the ring credential revision. Use an authorized trial to check enrollment, door access, drive authorization and key removal. Keep a working backup key available during evaluation.
Sources & documents
Technical references
Published specifications identify the reference model. They do not replace the final order drawing or a model-specific test report.
- Original ring size chart — measured labels ↗
Catalog / drawing reference · reviewed 2026-09-20
- Tesla Model 3 owner manual — keys ↗
Manufacturer reference · reviewed 2026-09-20
Custom orders & samples
Request your configuration
Choose the reference, then add quantity, destination, chip or reader details and any artwork on the enquiry page.