These mini cord locks are great for quilts and stuff sacks. You can never have enough cord locks. They measure 17mm by 8mm and weigh 0.5grams. These fit our shockcord 3mm (1/8th) shock cord or two 2mm (3/32) shockcord.
We find these more robust than other makes that use a 'softer' plastic.
They are sold in sixes.