Couple`s favorite with 3-way arousal. Soft, stretchy, and comfortable enhancer slips over the penis to add girth and support. 3-speed stimulator may be used independently for foreplay or added to the tantalizing double dolphins. Pleasure nubs inside and out provide extra stimulation for her and him. TPR (enhancer), ABS with Metallic Plating (stimulator). Batteries included (3 watch, 6 included). 2 x 1.5/ 5 cm x 4 cm (dolphin). 4 x 1.5/ 10 cm x 4 cm (shaft). 2.25 x .75/ 6 cm x 2 cm (stimulator).