4T Car Shrinkable HandHeld Vehicle Security Lock

This product is a portable wheel securing device designed for slope parking, wet road anti-skid protection, and emergency vehicle maintenance. Featuring a high-strength aluminum alloy and anti-slip rubber composite structure, it achieves rapid deployment and stable parking through a hand-pull telescopic triangular support and rubber base friction anchoring.

The product operates on a combination of triangular mechanical support and rubber-to-ground friction:

1. Triangular Structure: Forms a stable triangular support plane upon expansion, utilizing geometric stability as the foundation for anti-slip performance.

2. Friction Anchoring: The 6mm anti-slip rubber base makes full contact with the ground. Vehicle weight pressing down generates strong friction, preventing the wheel from sliding backward.

3. Self-Locking Effect: As the wheel presses onto the chock, greater weight creates greater friction — a self-reinforcing lock that holds firmer under load.

Advantage

No bending or squatting required. One hand is all it takes to complete the entire process of deployment, positioning, and storage. The operator maintains a wide field of vision, clearly observing the vehicle, road conditions, and approaching traffic — effectively eliminating safety risks associated with roadside operation.

Forms a stable triangular structure upon expansion with high rigidity and excellent lateral stability. The 6mm anti-slip rubber base grips the ground firmly, delivering reliable traction even on slopes, wet surfaces, or loose ground.

Weighs only 2.5kg. When retracted, its compact size of 151×218×816mm slips easily under the trunk floor or into side storage compartments — taking up minimal space and ready whenever you need it.

The main body is made of forged and welded aluminum alloy, offering high strength and good toughness. The electrostatic spray coating provides rust and corrosion resistance, adapting to outdoor environments ranging from high heat to low temperatures and humidity.

Built-in spring assistance — pull outward for automatic locking, press the release button for rapid folding. Both deployment and storage take just seconds — simple and efficient.

• Slope Parking: Prevents vehicle rolling on inclines.

• Rain & Snow Weather: Provides anti-skid assistance on wet roads.

• Tire Changes & Maintenance: Offers secondary safety protection during jacking operations.

• Logistics Loading/Unloading: Prevents unintended vehicle movement during cargo handling.

• RV & Camping: Ensures stable parking on uneven terrain for enhanced safety.

• Configuration Recommendation: For optimal safety, use chocks on both front and rear wheels. It is recommended to purchase 2 units (single axle) or 4 units (all four wheels) as a set.

• Cleaning & Maintenance: Clean the rubber base and ground contact surface before each use to remove gravel, oil, and debris, ensuring optimal anti-slip performance.

• Wear Inspection: Regularly inspect the rubber base. Replacement is recommended when wear depth exceeds 1.5mm.

• Application Range: This product is designed for vehicles up to 4 tons. Do not use on vehicles exceeding this range. Contact us for customization if needed.

• Safety Reminder: This product is a parking assistance device and is not a substitute for the parking brake. Always engage the handbrake and shift into P (automatic) or the corresponding gear (manual).

Q1: What is this product?
A: It is a lightweight aluminum-rubber parking lock designed for vehicles up to 4 tons. Featuring one-hand operation, an anti-slip rubber base, and compact storage, it is ideal for slopes and wet roads.

Q2: What problem does it mainly solve?
A: It prevents unintended vehicle rolling during slope parking, wet road conditions, or emergency maintenance — keeping the vehicle stable and secure.

Q3: Is it easy to operate?
A: Very easy. One-hand operation is all it takes — you can do it while standing, no bending or squatting required. Just pull to expand, place it against the wheel, and it's secured in seconds.

Q4: Why does it provide anti-slip performance on slopes and wet surfaces?
A: Because it features a triangular support structure for high stability, combined with an anti-slip rubber base that generates strong friction with the ground — gripping firmly to prevent sliding.

Q5: How heavy is it? Is it easy to store?
A: Only 2.5kg — very lightweight. The shrinkable design makes it slim and compact when retracted, easily fitting into the trunk without taking up much space.

Q6: What material is it made of? Is it durable?
A: It features an aluminum alloy + rubber composite structure with anti-rust surface treatment — strong, durable, and resistant to corrosion even with long-term outdoor use.

Q7: What vehicles is it suitable for?
A: It is suitable for vehicles with a gross weight of up to 4 tons, including SUVs, MPVs, light passenger vans, and light trucks.

Q8: Are there color options?
A: Yes. The standard color is yellow, and custom colors are also available upon request.

Q9: Can the size be customized?
A: Yes. The product dimensions can be tailored to specific wheel sizes.

Q10: What scenarios is it best suited for?
A: It is suitable for slope parking, rainy/snowy wet roads, vehicle breakdown inspections, tire changes, logistics loading/unloading, RV camping, and more.