This is a replacement bobber for the automatic fisherman. The bobber is a key part in the product because it allows the fish to have slack line so they take the bait better before the fishinig rod sets the hook. The carlise float is designed for bigger fish like walleye, pike, catfish, carp, and trout. This bobber is heavier than our foam bobbers because it is designed to be the counter weight to stop the 3 to 5 inch golden shiner minnows from taking out the slack line before the fish does. They will improve your ability to catch finiky fish so please use them. The bobber is 2 long and 1 1/4 wide it is made form balsa wood and painted. Give them a try you wont be dissapointed.