90% assisted leather of 28 to 35 kilos average. â?¢ Lowered with very little assistance on skirts in some leathers. â?¢ C.I.F/ FOB â?¢ Maximum 4 iron marks â?¢ Average weight of 28 to 35 kilos â?¢ Very few insect marks â?¢ No botfly larvae, no horsefly. 10% assisted leather of 26 to 28 kilos average â?¢ Lowered with very little assistance on skirts in some leathers. â?¢ â?¢ C.I.F/ FOB â?¢ More than 4 iron marks. â?¢ Minimum range of 26 to 28 kilos. â?¢ Insect and horsefly defects and marks