Dimensions: Shot Glass Width: 2.12 in. , 5.38 cm. Shot Glass Height: 1.87 in. , 4.74 cm. Volume: 1 oz filled to brim Necklace Length: 31 in. , 78.74 cm. Necklace Color: Green Glass & LED Color: Green Green Shot Glass on Green Party Bead Necklaces come ready to use, batteries are not replaceable.