RollBuster, model 1-03195-00, is an anti-roll device for a monocular lens designed for use by individuals with low vision. These friction-fit rings come in pairs that fit on each end of a monocular. They have flat outer edges to prevent rolling, and are shock-absorbent to provide some protection from impact. The rings come in packs with one pair each in the shape of a triangle, square, and hexagon, and two pairs in the shape of a pentagon. These rings do not interfere with monocular focusing or handling. DIMENSIONS: 25- millimeter triangles, 28-millimeter squares, 30- millimeter pentagons, and 40-millimeter hexagons.