Legroom wars: the device that stops plane seats reclining

The Knee Defender is about the same height as a house key  Photo: gadgetduck.com The Knee Defender safeguards precious legroom by preventing the seat in front of you from reclining any further. Consisting of two plastic clips which are placed at the top of either arm of the tray table, the miniature device keeps the seat in front of you locked in place.