Plant Trees In USA – Part of your purchase goes directly to planting trees in USA through our partnership with US Forest Service and National Forest Foundation. This ensures that more is put back than taken out from our earth. 100% Well-Managed Forests – Shop confidently knowing your product comes from a sustainable source! We rigorously inspect and audit our suppliers on an annual basis to ensure they meet the qualifications our customers expect. Plant-Based Bristles – USDA Bio-Preferred (#65739). Our Bamboo Toothbrushes have bristles that are 100% plant based, derived from castor beans! The chemical compound is Nylon 1010 which is a bio-based polymer extracted from castor oil. It has excellent mechanical properties such as strength, high melting point, and compact melting point. Pack of 4 Numbered – Doctors recommend changing your toothbrush every season. A pack of 4 is perfect for the entire year! You can also share the 4 pack of bamboo toothbrushes for each person in your household. The toothbrushes are individually numbered making them great for sharing! Minimal Packaging – We know the last thing our customers want is excessive packaging. That is why we package our Bamboo Toothbrushes inside a single recyclable box. Bristles bent during shipping? Simply soak the bristles in hot water to retain the original shape!