Preform Dimension Form Wire Dia LengthID (inner diameter) Width Thickness Rod 0.5---5.03---1000 Ring 0.5---3.0 5---120 Wire0.5—2.0 Foil 1.5--1200.25--2 Strip 1.5--1200.25--2 If you require special dimension, please call or email directly.High Copper Brazing Filler Metals China website:http://www.chinabraze-ens.com/brazing-alloy/high-copper-brazing-filler-metals/