Johnsons Iodised Condition Peks are a complementary food designed to provide your bird with extra nutrients. These hanging cage treats are suitable for all types of birds and come with a provided hook for easy placement in any cage. Each block measures approximately 4.5 cm x 3.5 cm x 2 cm and weighs 33g. The product is a great value 10-pack bulk buy, designed to help keep your bird healthy. Please note that this product is a treat and not intended to replace a correct diet. Johnsons Iodised Condition Peks contain iodine, grits, seaweed extract, calcium, yeast, vitamins, and minerals.