Jon Block Marine Grade Natural Rubber Boat Tool 3 By 3 Inches Fits a Three Quarters Inch Shaft Smooth Glide For Fishing And Trailer Prep Durable Boat Accessory Built Tough For Wet Conditions

Marine-Grade Rubber Jon Block for Boat Trailers, 3x3
✔️ Fits 3/4 inch shaft and smooth glides on loading ramps

This marine-grade rubber Jon Block is a must-have accessory for boat trailers. Designed to withstand harsh marine environments, it helps boats move smoothly on the trailer during loading and unloading, especially on fishing trips. It can serve as a replacement for original trailer roller components, delivering long-lasting performance in wet conditions.

✅ Material: marine-grade black natural rubber
✅ Size: 3 in x 3 in (fits 3/4 in shaft)
✅ Replacement for original trailer accessories
✅ Provides smooth movement on wet trailers

💡 What is a boat trailer Jon Block used for and why choose marine-grade rubber?

This handy block cushions and guides boats on trailers, improving loading and unloading in wet conditions.

- marine-grade rubber construction resists saltwater and wear
- fits 3/4 in shaft on common trailer setups
- replacement for worn trailer rollers to extend service life
✝️