Source 3-pack - medium bristles

2 New SOURCE Styles includes Recycled US Dollar Bills from Unites States Mint and Recyled Flax from Linen production.93% Recycled Material - 47% Renewable Resource.Replaceable Heads + Wooden Handle = Only 7% of toothbrush wasted as compared to 100% of ordinary toothbrushes.Wooden Handle is molded from recycled wood bio-plastic resulting in 100% renewable resource.New lightweight unbreakable replacement heads made from surgical-grade nylon.Dramatically increases softness and efficacy of brushing with 65% more bristle tufts than ordinary toothbrush.Reversible for both Right or Left handed brushing - Available in soft or medium bristles.Handle lasts forever. Simply throw the heads away!