Connect. Its a c-ring with an attached sack ring that tugs and gently pulls the balls down. The 2 rings are attached with a wide connector that acts like a rubbery spring- its strong enough for plenty of pull, but stretchy enough for a good long tug. MATERIAL:plus+silicone TPR/silicone blend DIMENSIONS: Width:2.25" Height:2" Depth:2" Mainhole circumference:3.75" Ball holeCircumference:3" Distance between rings:.75-1"