No more lost or dirty cups! This is a fantastic and multifunctional product!, SippiGrip is an award winning mom-invented product, which prevents your child's cup, bottle or toy from falling to the floor and getting lost or dirty. Will Save you from having to pick up the bottle every five seconds as our baby investigates how gravity works! Can adjust the size (length) for your stroller/highchair/purse/grocery cart/etc. Rubberized on the inside of the loop that attaches to the cup or bottle. Fits any shape of milk bottle or sipping cups.