LEORAY Jack Wheel Chock for Dual Wheels — Reinforced Nitrile Rubber, Drainage & Anti-Slip

When parking a caravan or trailer on soft ground, uneven surfaces or greasy surfaces, the jack wheel can sink, shift or corrode. The LEORAY Jack Wheel Chock for dual wheels spreads load across a larger footprint, resists oil and water, and keeps drainage channels clear so your jack stays cleaner and lasts longer. It’s a compact, resilient accessory designed for everyday towing and seasonal storage alike.

How does this chock stop a jack wheel from sinking or rolling?

The chock increases the contact area between the jack wheel and the ground, reducing pressure that would otherwise cause sinking in mud, sand, or grass. Its wedge shape and lip also keep the wheel from moving sideways or rolling under load. Drainage openings prevent water pooling, which helps maintain grip and reduce corrosion risk.

• Large base spreads weight to avoid ground penetration
• Wedge contour and retaining lip stop lateral movement
• Built-in drainage holes prevent standing water
• Designed for dual-wheel jack caster setups

What materials and features make this chock durable outdoors?

Manufactured in a single molded piece from premium nitrile rubber, the chock resists oil, gasoline, water and some hydraulic fluids. High-temperature vulcanization gives it weather tolerance without strong odors, and the dense rubber retains shape under repeated loads. This construction reduces the chance of cracking, deformation or chemical damage over years of use.

• One-piece molded nitrile rubber for toughness
• Resistant to oil, gas, and water exposure
• Heat-vulcanized to remain stable in extreme temperatures
• Odorless and non-toxic for convenient storage

Will using a chock extend my jack wheel’s service life?

Yes — by keeping the wheel off corrosive or abrasive surfaces you reduce wear, rust and contamination. The chock prevents mud and grit from embedding in wheel bearings and reduces exposure to standing water. Cleaner, drier environments for the jack wheel translate into fewer repairs and longer intervals between maintenance.

• Prevents direct contact with mud, oil and grit
• Reduces water accumulation near the wheel and jack assembly
• Minimizes abrasive wear on wheel tread and bearings
• Simple placement means consistent protection every trip

How easy is it to carry, fit and store this dock?

The chock measures approximately 7 in x 6.7 in x 1.38 in and is light enough to move by hand yet heavy-duty in function. Its compact footprint fits most caravan and trailer storage compartments or the trunk of a tow vehicle. Installation requires no tools—simply position the chock under the jack caster wheel when parked.

• Portable size fits vehicle storage spaces
• No tools or hardware needed for use
• Quick placement and removal for stops or storage
• Durable shape holds up during transport and use

Who is this for: The LEORAY Jack Wheel Chock Dual Wheel is ideal for caravan and trailer owners who regularly park on soft, uneven or potentially oily surfaces and want a low-effort way to protect their jack caster. It suits weekend campers, seasonal travelers, caravan storage users, and anyone who tows with dual-wheel jack assemblies and prefers a durable, reusable solution over improvised boards or soft ground mats.