Plastnir is a major producer of banana sleeves in Israel, providing 80% of the sleeves used in the country. They have developed different types of sleeves over the years to suit various climates and growing conditions. Sleeves protect bananas from elements like wind, rain, and hail, and allow bananas to fill out better for higher quality and grades. Sleeves typically increase banana yields by around 10% and improve fruit quality, generating income that is 4-10 times higher than the cost of the sleeves. Plastnir works closely with growers and scientists to determine the best sleeves for different needs.