Crain 017 Skat Skates are a pair of heavy-duty dollies that are adjustable in length for moving a wide variety of furniture and appliances. Each dolly in the set adjusts in length from 24" to 32". Each dolly has two 8" x 10" load pads and four pivoting casters beneath each pad. The 16 total casters allow the load to be easily moved or to change direction. The steel load bearing plates and telescoping tubes are welded together for durability. The Crain 017 Skat Skates soft urethane casters won't scratch or dent most floors. The maximum load capacity for the set is 1,000 lbs.