Extension Spring for 7 High Door, 100 Pounds 100# Extension Springs - small tan Springs 25-42-100 Extension Springs Can be used on any door that weighs around 100 lbs. Double Looped Ends 25" Relaxed, 42" Stretch, Rated 100 Pounds Per Set DASMA Color Coded; small tan. See our other auctions if you need cables or pulleys.