This is a large bar bottle that once contained Bell's whisky. The 1 litre gin bottle is for scale.
The cord used is mostly 2.5mm. polyester. At the neck is a Pineapple knot and the stopper is a 16-strand LLK made with type 1 paracord.
I started the square knotting with 40 strands then added another 40 below the shell knots and finally another 40 (white) giving 120 strands for the main design which required a multiple of 12 for the all round pattern.
The base features one of Skip Pennock's circular mats. This one took some time!