Aluminum stretcher tubes are lightweight and rustproof. The No. 517 5' Aluminum Stretcher Tube can add up to 8 feet 8 inches of length to your stretcher in 4 inch increments - enough for a variety of rooms. Crain aluminum tubes feature a score line on the inner tube and the outer tube for aligning the buttons with the holes during length adjustment. These tubes work with other standard size diameter tubes. Closed length: 5 feet. Range of useful length adjustment: 5 feet to 8 foot 8 inches. Net weight: 6 lbs.

• Lightweight and rustproof.
• Adds up to 8 feet 8 inches of length to a stretcher in 4 inch increments.
• Score line on inner and outer tubes to align buttons with holes during length adjustment.
• Works with other standard sized tubes.