Xgen Products Size Up See Thru Stretch Penis Extension Sleeve 1.5 InchRealistic Feel with Visual Appeal Enhance both length and pleasure with the Size Up 1. 5 Clear Textured Extender. The transparent design lets you watch every thrilling movement, while the pleasure nubs deliver increased friction for a heightened experience you and your partner will love. Comfortable and Secure Design The soft, body safe TPE material stretches naturally to fit your shape, and the integrated ball loop keeps the extender firmly in place.