This cute charm is the perfect accessory for Grandma’s favorite tumbler. You can also use this on your favorite insulated coffee mug with a handle height of approximately 2.5inches high. It easily attaches, simply unscrew the clasp, slide through the handle and then reattach the clasp. If the clasp does not reattach easily you may need to pull back on the beads a little bit. This is made with silicone beads , acrylic and metal spacers and a sturdy cable wire. It is not recommended that you put this in the dishwasher but it can be washed with soapy water.