Large Ball Cotton String This large ball of Cotton Twine is strong and made of natural fibres. The biodegradable natural materials used are compostable and recyclable and can be used for a variety of different purposes. The Ultratwine Large ball of Cotton String represents excellent value for money offering approximately 525 meters of string per kilogram. Strong Natural Fibres Biodegradable Compostable Recyclable Multipurpose Dimensions: Depth: 9 cm x Width: 9 cm x Height: 8 cm Weight: 124 grams