ROBLOCK Wheel Chocks 4-Pair Green for Trailers & RVs — Heavy-Duty Non-Slip Stackable

ROBLOCK 4-pair wheel chocks are heavy-duty, UV-resistant plastic stops designed to prevent vehicle movement for trailers, campers, RVs and light trucks.

When you park a travel trailer, camper, or utility vehicle on a slope or work around wheels, a reliable chock is a simple safety step that removes a lot of worry. These ROBLOCK chocks combine a triangular, grooved contact face with a non-slip base and bright color for visibility. Built from UV-stabilized hard polypropylene, the set stacks compactly for storage and is sized to suit most passenger and light-trailer tires.

How do these chocks keep a trailer from rolling?

The triangular shape and textured wheel-facing surface bite into tire tread while the grooved base grips the ground, resisting lateral and forward motion. Each unit is sized to cradle one wheel; using paired chocks on both sides locks the wheel from both directions.

• Triangular geometry increases contact pressure against the tire.
• Deep grooves on the wheel side improve mechanical grip.
• Grooved base reduces slipping on asphalt, gravel or packed dirt.
• Use chocks in pairs for best safety—place front and back of the wheel.

Will these fit my RV, camper or utility trailer tires?

Each chock measures approximately 7.9" long by 4.7" wide and 4.3" high, a size that accommodates most passenger vehicles, light trucks, trailers and RV wheels. The profile is made to stop common tire diameters and widths found on travel rigs.

• Dimensions: 7.9" L × 4.7" W × 4.3" H — suitable for many tire sizes.
• Works with cars, vans, light trucks, trailers and small aircraft ground wheels.
• Stackable design saves space in storage compartments or trunks.
• Bright green color improves visibility in low light.

How durable and weatherproof are these chocks?

ROBLOK chocks are molded from hard plastic with a UV inhibitor so they resist sunlight degradation, oil and moisture exposure. The material stays rigid for consistent stopping performance and resists cracking under normal use conditions.

• PP with UV inhibitor prevents sun brittleness and fading.
• Resistant to oil, water and general workshop chemicals.
• Hard plastic construction holds shape under load from light‑duty vehicles.
• Easy to clean — hose off mud or dirt before storing.

How convenient is it to carry and store these chocks?

Each set includes four chocks that stack together for compact storage; they weigh light enough for one-person handling and fit into RV compartments or the trunk of a car. The simple shape and lack of moving parts reduce maintenance and make them ready to use with minimal setup.

• Stackable for compact storage in tight spaces.
• No rope or extra hardware required — simple, low‑profile design.
• Lightweight for easy placement and removal by hand.
• Bright color helps locate chocks quickly at night or in dim campsites.

Who is this for: The ROBLOK 4-pair wheel chocks are intended for recreational vehicle owners, trailer operators, van lifers, light-truck drivers and anyone who needs an affordable, portable wheel-stopping solution. They are well suited for campsite use, roadside stops, loading and unloading tasks, and routine maintenance where preventing wheel movement is a priority. If you regularly park on inclines or work around wheels, these chocks add a straightforward layer of protection and convenience.