This vintage lace fabric is dense and has heavy weight.You can see the density from the photo.There is much stitch in each unit.We know that there is a measuring unit which can tell its weight.GSM is short for g per square meter.There is a special machine measuring GSm.It cuts one round piece from the lace fabric and the machine will show its GSM.But our factory doesn’t have this machine.We can only guarantee that the final products will be the same quality as the sample approved because all the production process is the same as apprpved sample.