Description
Product Overview
Designed for heavy-duty use, Nisorpa’s 4’ rubber dock bumper is engineered to absorb shock and protect boats, yachts, and watercraft from impact. Made from high-quality natural rubber, this hollow D-type bumper provides superior cushioning and durability. Measuring 39.4″L x 3.94″W x 3.94″H, it fits standard boat docks, marinas, and loading areas. Each unit weighs 18.6 pounds and comes with M8 hex bolts for easy installation. Ideal for both commercial and residential use, this bumper ensures safety and longevity for your watercraft.
Usage
Perfect for boat slips, marinas, water taxis, inflatable boats, and yachts, this bumper prevents damage from docking or mooring. Also suitable for garage parking, loading docks, and industrial applications. Ideal for boat owners, marina managers, and commercial operators who need reliable, long-lasting protection. Easy to install and maintain, it fits both new and existing dock setups without requiring major modifications.

Why Choose Us
Nisorpa’s dock bumpers are crafted with premium natural rubber for unmatched durability and shock absorption. Unlike V-shaped bumpers, the hollow D-type design offers superior flexibility and impact resistance. Each bumper comes with pre-threaded bolts and duct tape for quick, secure installation. Customer reviews rate it 4.1/5 for reliability and performance. We stand behind our product with a commitment to quality and customer satisfaction.
Key Features
- Strong shock absorption: Hollow D-type design absorbs heavy impacts better than V-shaped bumpers.
- Heavy-duty rubber: Made from natural high-quality rubber, it resists compression and lasts long.
- Multi-scene use: Perfect for boats, yachts, water taxis, inflatable boats, and garage parking.
- Easy installation: Comes with M8 hex bolts and duct tape for quick, secure mounting.
- Customer support: We provide reliable after-sales service and product guidance for all users.
FAQ
How do I install the bumper?
Pre-thread a bolt into the screw-hole, adjust and duct tape the bumper in place, then install the pre-threaded bolt. No tools required for basic installation.
What materials is it made of?
It’s made from high-quality natural rubber, which is strong, durable, and resistant to compression and weathering.
Can it be used for garage parking?
Yes, it’s suitable for garage parking and other industrial applications, including loading docks and box bumpers.
What is the size of the bumper?
It measures 39.4″L x 3.94″W x 3.94″H (100cm x 10cm x 10cm), ideal for standard boat and dock setups.
How many units come in a package?
Each package contains one bumper, weighing approximately 19 pounds.




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