Whether fishing the ice or open water, the Clam String Tie Bobber Stop Knots make setting up for bobber fishing a breeze! Simply run line through the sleeve, slide the knot off the sleeve, trim the ends, and slide the knot up or down to set your depth. That’s it! With the Clam String Tie Bobber Stop Knots you can experiment with depths easily and quickly till you find where the fish are schooling!