All-natural MaterialOur nesting aid for insects are made of natural wheat straw, BPA-free, non-toxic and safe, with a clean and smooth surface, which is important for the wings of sensitive wild bees. Insect hotelsEnvironmentally friendly nesting, breeding and hibernation aids can be used for beneficial insects. Attract bees to pollinate your plants. Year-round useThese bee tubes for insect hotel construction can be used all year round. As it is a natural material, please handle it gently. Widely usedSuitable for building insect hotels, as a shelter or nesting aid for ladybugs, bees, butterflies and other beneficial organisms, also perfect for updating/remodelling existing insect hotels and DIY decorating your garden. In addition, it can also be used as a drinking straw. Quantity and sizePackage includes: 300PCS. Inner diameter: 8 mm. Size: 20cm.