17mm Ball Head Base – Car Air Vent Phone Mount & GPS Bracket

Upgrade Your Car Phone Mount with a 17mm Ball Head Base

Tired of a wobbly or poorly positioned phone holder in your car? This Upgrade 17mm Ball Head Base by untoom is the perfect replacement or add-on component for your existing car phone mount setup. Compatible with magnetic and gravity-style holders, it clips securely to your car's air vent and delivers smooth, 360° adjustable positioning so your phone or GPS is always right where you need it.

Whether you're upgrading a worn-out base or building a custom mount configuration, this 17mm ball head adapter fits universally with standard ball-joint phone holders — giving you a stable, hands-free driving experience without the hassle of drilling or permanent installation.

Key Features

• 17mm Universal Ball Head – Fits standard ball-joint compatible car phone holders, magnetic mounts, and gravity brackets
• Air Vent Clip Design – Attaches easily to most car air vents with a secure hook/clip mechanism — no adhesives or tools required
• 360° Adjustable – Swivel and tilt freely to find your ideal viewing angle for your phone or GPS device
• Universal Compatibility – Works with virtually all smartphones and GPS devices, regardless of brand or size
• Durable Plastic Construction – Lightweight yet sturdy build designed to handle daily driving vibrations
• No Charger / Speaker – Pure mount base accessory; clean and clutter-free
• Model: C-146-A

Specifications

• Brand: untoom
• Material: Plastic
• Ball Head Size: 17mm
• Mount Type: Car Air Vent Clip
• Compatible With: Universal (Magnetic & Gravity Phone Mounts)
• Model Number: C-146-A
• Made in Mainland China

Great Pairings for Your Car & Home Organization

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Learn more: FuelEconomy.gov on vehicle maintenance

Frequently Asked Questions

Q: What size ball head does this car mount base use?

A: This base features a standard 17mm ball head, which is compatible with a wide range of car phone holders, magnetic mounts, and gravity-style phone brackets that use a 17mm ball joint connection.

Q: Will this 17mm ball head base fit my existing car phone holder?

A: Yes — as long as your car phone holder or GPS bracket supports a standard 17mm ball head socket, this base will connect and work seamlessly. It is designed for universal compatibility across most popular mount brands and styles.

Q: How does the air vent clip attach to my car?

A: The base uses a clip/hook mechanism that slides onto the fins of your car's air vent. No adhesives, screws, or tools are needed. Installation and removal take only a few seconds, and it leaves no marks or residue on your vent.

Q: Is this compatible with magnetic phone holders?

A: Absolutely. This 17mm ball head base is compatible with both magnetic phone mounts and gravity-style brackets, making it a versatile replacement or upgrade base for a wide variety of car phone holder systems.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.