In wooden hand blocks used for printing on fabric the Asl is part of the set and forms the fine outline of the pattern. It is intricately carved in relief from the wood of choice. The best wood for asl is obtained from the oil extracting press (chakki) used in the villages. The most delicate block in the printing set, asl it is the first block to be carved and the print of this is then used for the filler blocks of dattas and gad.