Halo matrix bands are made of ultra-thin 0.038 mm stainless steel that is anatomically contoured to the natural shape of the tooth. The curve at the marginal ridge creates an ideal occlusal embrasure to help to ensure anatomically accurate restorations and reduce time shaping and finishing the composite restoration. Available in Original and Firm, Original bands allow for greater adaptability, while Firm bands are ideal for tight interproximal spaces. Firm matrix bands are available with or without a special coating that is color coded according to size to assist you in selecting the correct band.