【Size 】 (bottom diameter x H): 6cm*14cm, cup holder diameter is about 70mm-80mm, adjustable clamp diameter is about 1.5cm-4cm. Bottle holder suitable for most standard bottles (weight 【Adjustable 】Adjustable bicycle cup holder with 360 rotation. It can be mounted on the handlebar, under the seat, down tube, fork, front tube, can be used on most strollers 【Material 】 - High quality plastic and metal parts, very durable. Developed for the storage of cups, cans and bottles. 【Easy installation 】 - The bike or stroller bottle cage clamp is designed to be easy to install and remove without the need for tools. Mounts in seconds No tools required, can be mounted vertically or horizontally. 【Wide use】cup holder suitable for strollers, mountain bikes, bicycles, wheelchairs. Cup holder compatible with most strollers. Specifications Name: Cup Holder Material: ABS Plastic + metal Size (bottom diameter x H): 6cm * 14cm The diameter of the cup holder: 6 cm ~ 6.5 cm The diameter of the adjustable clamp is: 1.5cm - 4cm (Note: the holder does not fit rods or tubes with a diameter greater than 4cm). Maximum weight of suitable bottle the rack can hold: 800g Weight: Approx 100g Color: black 1 x Bike Cup Holder Compatibility This quick release bike carrier is perfect for mountain bikes, bicycles, strollers, wheelchairs. Compatible with most strollers like Chicco, Britax, Peg Perego, City Mini and so on. Notes 1, Do not screw the bracket too far to the left or the bracket head will fall off and you will have to screw it back. 2, it is better to put bottles under 800g in the holder.