USA Impression Trays offer uncommon value — full features and a low price. High- temperature plastic resin construction is autoclavable to 250°F without distortion. Occlusal surface lines maintain space to eliminate bite-through. Rounded edges ensure patient comfort. Full perforation eliminates the need for adhesive. Non-slip handle with finger rest is marked for easy identification. Soft yellow color. Made in USA. #7 UR, LL Quadrant. 12 trays per bag.