Twin roller cages spin smoothly, painting two sides of a pipe simultaneously. Fully adaptable to paint pipes, railings, posts, and I-beams as tiny as 1 inch diameter. Features include galvanized 1/4" shanks, a polypropylene threaded grip, and compatibility with Sherlock GT®. Compatible with both 4 1/2" and 6 1/2" Jumbo-Koter minirollers.