Tie-in Cord is a strong waxed nylon cord. It is used for tying in stocks on bagpipes.
The Tie-in Cord kit comes with 30 yards of strong waxed nylon tie-in cord, instructions, and 2 bits of leather for making welts for your chanter stock. There is enough cord here to tie in one pipe bag with all 5 stocks.
Tie-in Cord Kit