Experience new thrills with the Prince Trainer Kit from Firefly. Includes three sexy and stylish. glow-in-the-dark plugs made of firm. smooth silicone for a rocking good time! Assorted sizes. Suitable with all lubricants.Product Dimensions:Sm: 4.5 x 2.0 x 0.8 in.Med: 5.1 x 2.3 x 1.0 in.Lg: 6.2 x 2.9 x 1.2 in.Package Dimensions: 8.03 x 7.83 x 1.57 in.