Flavour Oystershell. Flavor Oystershell. 1-litre reusable tub of oystershell grit, ideal for poultry, cage birds, and organic gardening. Unit count 1000.0 millilitre. This 1-litre reusable tub contains grit that aids digestion by acting as the ‘teeth’ in a hen’s crop to help grind food effectively.
