• Pump length: 2.6 in (6.6 cm)
• Tube diameter: 0.6 in (1.5 cm)
• Tube circumference: 1.9 in (4.7 cm)
• Ring diameters: 0.38 in (1 cm) to 0.58 in (1.5 cm)
• Made of glass and rubber
• Comes in set of two
Simple but effective review by jennyjo on 6/6/2016
Whether you put the O rings on your nipples or not, the suction tubes feel very nice. The O rings are a nice bonus. It also feels great on my clit!