CARTMAN Foldable Road Safety Warning Triangles 3-Pack — 17 x 17in DOT-Approved Reflective, Sand-Fillable Bases

CARTMAN 3PK DOT Approved Foldable Road Safety Warning Triangles are a three-piece, FMVSS-compliant roadside alert kit designed to increase visibility and stabilize warning indicators during vehicle breakdowns.

When a vehicle stops unexpectedly, clear, durable warning signals are essential. These CARTMAN triangles combine DOT-approved reflective panels with a heavy, rotatable base so you can set up multiple, highly visible markers quickly. The foldable design stores compactly in trunks or bags, while the fluorescent coloring and 17 x 17 inch panels help other drivers spot your stopped vehicle in daylight, at night, or in poor weather.

How do these triangles improve roadside visibility?

The reflective surface and fluorescent backing maximize detection from far-off angles and under different light conditions. Each triangle measures 17 x 17 inches, giving a large visual footprint that reflects headlights effectively and stands out against road and landscape backgrounds.

• DOT approved and FMVSS 571.125 compliant reflective panels
• 17 x 17 inch reflective surface with fluorescent plate
• High-contrast coloring for day and night visibility

Are the CARTMAN triangles stable in windy or high-traffic conditions?

Yes — the base is designed to resist overturning from wind and passing vehicles. Each base can be filled with sand to add weight, and the rotatable design helps you orient the triangle against gusts for greater stability.

• Rotatable base to face prevailing wind or traffic
• Sand-fillable base increases each triangle to approximately 2.98 lbs
• Low center of gravity to reduce tipping risk

How quickly can I set them up and store them after use?

Setup takes just seconds and requires no tools: the snap-fit, folding construction expands into a rigid triangle and collapses flat for compact storage. Their slim folded profile slips into most trunks, glove compartments, or emergency kits, making them easy to keep onboard.

• Tool-free snap-fit assembly for fast deployment
• Foldable construction for compact storage
• Three triangles included to create multiple warning points

How should I place the three triangles for maximum safety?

Use all three markers to give approaching drivers layered warning: one near the vehicle, one at a mid-distance, and one farther back along the lane or shoulder. This staggered layout increases the time drivers have to react and can be adapted to highways, rural roads, or urban streets.

• Place one triangle close to the stopped vehicle on the shoulder
• Set a second triangle 50–100 feet behind the vehicle
• Use the third triangle further back or to mark a lane shift depending on road conditions

Who is this for: CARTMAN 3PK triangles are made for drivers, fleet operators, roadside assistance teams, and anyone who wants a reliable, portable way to signal a vehicle emergency. They suit passenger cars, SUVs, trucks, and commercial vehicles, and are practical for personal trunks, toolkits, work vehicles, and emergency response gear — a simple, regulation-compliant component to improve roadside safety without taking up much space.