Nexus Simul8 Stroker edition is a dual anal and perineum cock and ball toy, perfect for maximum satisfaction alone or with a partner. Hidden in the shaft tip is 5-speed stroker technology which emulates the come hither motion for perfect prostate stimulation whilst the base houses a 6-speed vibrating motor for simultaneous perineum stimulation. The super-stretchy cock and ball ring will keep you harder for longer maximizing your experience whether alone or with a partner. Control both motors independently giving you a plethora of pleasure combinations, 39 in total! Simul8 Stroker edition is rechargeable and comes with a magnetic charger. *Waterproof/submersible Use with water-based lubricant only. 5 stroker modes, 6 vibration modesInsertable Length 10 cm (3.94 in.)Shaft Width 3.6 cm (1.42 in.)