1.CUP AND CELL PHONE HOLDER: Fully insulated stroller cup holder with mesh pockets to hold your cell phone, keys, sunglasses, pacifier and other quick-grab items 2.UNIVERSAL COMPATIBILITY: A non-slip, adjustable strap securely attaches the cup holder to DIAGONAL bars (not meant to be used with horizontal or vertical bars). Compatible with Uppa, Nuna, Mockingbird, Graco, Doona and many other stroller brands 3.MORE DURABLE THAN PLASTIC: Plastic cup holders can crack and break. The soft, insulated design of the Cup 'N Stuff won't ever break or crack, providing peace of mind and durability. The fully- enclosed bottom prevents any leaks or condensation drips 4.ATTACHMENT TIPS: For the most secure installation, position the cup holder on top of the stroller bar (at an almost horizontal position), then wrap the strap around the bar, fasten and secure the strap as tight as possible. When a cup is placed in the cup holder, it will position to vertical, holding the cup upright.