This Tyrant insert works with windowed tin containers measuring 100 x 70 x 20 mm / 3.9 x 2.8 x 0.8 inch (L x W x H) You can find them in several places and are either coated in black, silver or gold. There is a shallow window top that measures 70 x 52 mm / 2.8 x 2 inches (L x W), the lid is easy to open and close.