Product review (5 stars): Space Saver Dryer Vent Extension
Wife tired of how far the dryer was from the wall so I spotted this unit during an internet search.
Unit arrived in excellent condition and once I adjusted the vertical height needed I sealed all the seams with Duct Tape.  To prevent dryer lint leakage and to keep parts from changing length.
Easy to attach to bottom of dryer and now dryer only sticks out from the wall about 3-4 inches.
Came with bottom clamp for attaching to dryer exhaust.
Wife now very happy with extra space, and there is nothing better than a happy wife.....