Approximate Dimensions: 1 3/4" wide; 5 1/4" length from top of trigger latch to bottom of bell.
It was a bit too heave to hang on my purse. I have it hanging on a hook in my kitchen. Instead of hollering up two different flights of stairs, my family knows when i ring it to come down for a meal. Well made, will last forever! Donna Kauffman Huddleston