The Mr. Longarm Lightbulb Changing System is a light bulb changing aid that can be used by an individual seated in a wheelchair or by others who have difficulty reaching light bulbs. The system contains one extension pole and three light bulb changing attachments. The three-section, non-conductive, variable-length pole allows a user to reach light bulbs on the ceiling with the pole extended. Interchangeable cups fit the three most popular bulb sizes: floodlight, spotlight, and incandescent light bulbs. OPTIONS: Lamb's wool duster and ostrich feather duster attachments to turn unit into a long handled cleaning system. DIMENSIONS: 3 extension poles available - 4 to 8 feet; 6 to 12 feet; and 8 to 15 feet. Pole handle diameter is 1.25 inches.