This is the Super Lightweight Antenna Mount from Hot Racing.
This item bolts to the chassis and the receiver antenna is routed through.

Super lightweight Less then 2g aluminum, holds securely without added weight.

One Blue anodized Lightweight antenna mount set.

Mounting to your chassis and running your receiver wire through it.

length: (20mm)
OD: (4.75mm)
ID: (3.34mm)

Comes in a variety of colors to match any vehicle
For other colors see:
BO0801 Black
BO0806 BLUE
BO807 PURPLE
BO802 Red
This mount will hold a standard antenna tube. It mounts to any flat surface with a 3mm or 1/8 inch hole.