Thick and rubbery, Jackt is heavy with inner nubs and ridges to stroke your Huj, no vent-hole for max suction... gripper finger ring outer ribs equal non-slip grip. JACKT stroker is made of blubbery rubbery-soft stretch Plus+SILICONE mix designed for a sloppy jo feelthis thing has hj nubby things and ribs and it gets narrower and wider inside, so many new feels for your knob. Finger ring Material: silicone Inner nubs Ridges and grip No-slip Big. Rubbery. Thick walls for extra meaty JO Inner nubs all around the opening, ripply humps further in Finger hole rubbery loop for no-slip grip Rubbery fat outer rim in case you pound hard MEASUREMENTS: Length: 6" (15 cm) Width: 2.5" (6.35 cm) Circumference: 8" (20 cm)