The sleeve works smoothly and effortlessly. Small grooves lock the sleeve in place, by twisting slightly to the left. Twist right to release and raise the sleeve to protect the bristles, when applying the cover.
Overall Length Closed: 6 1/2 inches
Length Open: 6 1/4 inches
Bristle Length: 3 1/4 inches
Bristle Diameter: 7/8 inches