554NEW BIO-Based Formula. Highly effective concentrated paste formula that lasts longer and takes less time to clean with than ordinary liquid or aerosol type cleaners. 

Fits .22, .243, .30, .38, .40, and Larger Caliber Barrels Compatible with Teslong NTG100 Series Rifle Borescopes Improves Visibility in Larger Caliber Barrels See More and Inspect Faster Keeps Your Probe Centered In The Barrel Easily Threads onto NTG Borescopes NOT compatible with NTG200 Focus & Fold Borescope

These premium bore brushes are made with a fiber that is cobalt blue in color so it can't be mistaken for any other type brush. 

USB Design Compatible with Android, Windows PC, or Apple OSX 26-Inch Rigid Borescope Probe Fits .22 Caliber or Larger Barrels LED Ring Light Illuminated Removable Side View Mirror

Explore hidden spaces with our WiFi Flexible Borescope, designed for seamless integration with your iPhone, iPad, or Android device. This 36inch / 92cm borescope features a flexible design, allowing for easy navigation through tight spaces. With a WiFi adapter included, you can capture high-quality images and videos from anywhere.

1522.30/.308 caliber