Dental General 29e89d52 The thickness of band material used with tofflemire retainer ranges from A 0.0508mm(0.02”) B 0.0381mm(0.0015”) C 0.0025mm(0.001”) D 0.05mm(0.002”) High-Yield Explanation Tofflemire retainer is available in .002” and a modified .001” varaiants.