All stoddard interdental brushes are specially designed to clean thoroughly in the wider spaces between teeth and around bridges and braces. They are vital for the prevention of plaque build up and will help in the promotion of healthy teeth and gums. They are manufactured using only the highest specification materials. High tensile strength, plastic coated, stainless steel wire at the core prevents the brushes from bending. For longer life the bristles are made from the same memory retentive nylon as used for toothbrushes. The brush is locked to the handle using a revolutionary production process making it virtually impossible for them to separate. Each interdental brush has its own hygienic cap which can also be used as a handle extension. Premium quality brushes 'made in england'.