Copyright © 2025 National Products Inc. Seattle, Washington. All rights reserved.

rammount.com
1-800-497-7479
sales@rammount.com
RAM® Tube Jr.™ Rod Holder with Revolution Arm without Base | |
---|---|
Part #:
RAP-390-RB-NBU
UPC:
793442940538
Patented
|
![]() |
Product Information | |
---|---|
Overview | Ideally suited for a wide range of applications and fishing vessels, this rod holder is quickly becoming known as the most versatile rod holder on the market. This configuration includes the RAM ROD® Revolution ratchet arm with single open socket. Combining the patented RAM rubber ball and socket system with a ratcheting feature; this rod holder has almost infinite adjustability and configuration options. Easily collapse the rod holder down on the deck for clearing your casting path or articulate over the water, and out of the boat or kayak. Rod holder doubles as a stake out pole holder. |
Specifications | |
---|---|
ball size | C Size (1.5") |
weight capacity | Standard Use: 4 lbs Heavy-Duty Use: 3 lbs |
materials | High strength composite |
packaging type | Poly Bag |
Weight | 0.97 lb |

The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured by a multitude of interchangeable components to fit your specific needs.

A Size
Holds .5 lbs.
Trail Cameras

B Size
Holds 2 lbs.
Phones, Action Cameras, Light Duty Tablets

C Size
Holds 4 lbs.
Fishfinders, Heavy Duty Tablets

D Size
Holds 6 lbs.
Heavy Monitors

E Size
Holds 15 lbs.
Heavy Monitors
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
Size | A Size | B Size | C Size | D Size | E Size |
---|---|---|---|---|---|
Short Arm | Overall Length N/A |
Overall Length 2.42" |
Overall Length 3.56" |
Overall Length 5.69" |
Overall Length 5.69" |
Socket-to-Socket Length N/A |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 2.5" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 4.66" |
|
Medium Arm | Overall Length 2.42" |
Overall Length 3.73" |
Overall Length 5.69" |
Overall Length 8.44" |
Overall Length 12.63" |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 3" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 6.88" |
Socket-to-Socket Length 9.88" |
|
Long Arm | Overall Length 6" |
Overall Length 6" |
Overall Length 9.13" |
Overall Length 12.98" |
Overall Length N/A |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 8" |
Socket-to-Socket Length 11.41" |
Socket-to-Socket Length N/A |
Kit Components

The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured by a multitude of interchangeable components to fit your specific needs.

A Size
Holds .5 lbs.
Trail Cameras

B Size
Holds 2 lbs.
Phones, Action Cameras, Light Duty Tablets

C Size
Holds 4 lbs.
Fishfinders, Heavy Duty Tablets

D Size
Holds 6 lbs.
Heavy Monitors

E Size
Holds 15 lbs.
Heavy Monitors
The unique double ball and socket design allows you to adjust your mount to the perfect viewing or operating angle, all with the turn of a single knob. This modular design can be configured with a variety of interchangeable components to fit your specific mounting needs.
Size | A Size | B Size | C Size | D Size | E Size |
---|---|---|---|---|---|
Short Arm | Overall Length N/A |
Overall Length 2.42" |
Overall Length 3.56" |
Overall Length 5.69" |
Overall Length 5.69" |
Socket-to-Socket Length N/A |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 2.5" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 4.66" |
|
Medium Arm | Overall Length 2.42" |
Overall Length 3.73" |
Overall Length 5.69" |
Overall Length 8.44" |
Overall Length 12.63" |
Socket-to-Socket Length 1.75" |
Socket-to-Socket Length 3" |
Socket-to-Socket Length 4.66" |
Socket-to-Socket Length 6.88" |
Socket-to-Socket Length 9.88" |
|
Long Arm | Overall Length 6" |
Overall Length 6" |
Overall Length 9.13" |
Overall Length 12.98" |
Overall Length N/A |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 5.31" |
Socket-to-Socket Length 8" |
Socket-to-Socket Length 11.41" |
Socket-to-Socket Length N/A |
Kit Components

Get a notification as soon as this product is available by signing up below!
Thank you for your interest in RAP-390-RB-NBU!
We'll email you once the item is available.
Overview
Ideally suited for a wide range of applications and fishing vessels, this rod holder is quickly becoming known as the most versatile rod holder on the market. This configuration includes the RAM ROD® Revolution ratchet arm with single open socket. Combining the patented RAM rubber ball and socket system with a ratcheting feature; this rod holder has almost infinite adjustability and configuration options. Easily collapse the rod holder down on the deck for clearing your casting path or articulate over the water, and out of the boat or kayak. Rod holder doubles as a stake out pole holder.
ball size:
C Size (1.5")
weight capacity:
Standard Use: 4 lbs
Heavy-Duty Use: 3 lbs
materials:
High strength composite
packaging type:
Poly Bag
Weight:
0.97 lb
Questions & Answers
Have a Question?
-
What are the inner dimensions of the tube jr?
The inside diameter is 1.5" and the length of the tube is 7".