1. Tray Sleeves cover the entire tray. 2.Simply remove after each patient and discard. Because of the unique open lock top design, only two sizes are needed and can be fitted to all size trays. 3.Fits Ritter B, Midwest, Weber, Chayes, Segmented Ritter B, A-Dec, DentalEZ, Dentech Segmented, Mini Tray. AMG Dental Tray Covers Weight: 5.0 lb/box Color: clear Size: 10-1/2"X 14", 11.6" x 16" Packing List:500 pcs/box