Glas Titus Beaded Butt Plug. Nothing is a smooth and clear as glass. This fun, clear glass beaded butt plug is perfect for rectal dilation, solo masturbation and couples play. Fracture-resistant and hypoallergenic, this toy can be easily cleaned. Retains heat and cold for increased stimulation. Compatible with all lubricants. 4.5 inches by 2 inches. Can safely be inserted 2.75 inches.