Flexible square screens make drying sticky foods easier to remove. Screen flexes for easy removal of sticky fruits such as pineapple. Perfect for drying small items like spices and herbs that would normally fall through the spokes of the tray. 2 Screen included. Only fits Nesco FD-80 and FD-80A Square Dehydrator (not compatible with other dehydrators). Colder ambient temperatures may cause the bend to temporarily hold in that position. Consequently, warmer ambient temperature would flatten it out. Please run the item under hot water to flatten.