High quality environmentally friendly materials: The cup holder is made from safe and eco-friendly ABS materials for durability and toughness. It is well made, with no sharp edges, and features a smooth surface to prevent scratches, making it safe for use around children. The cup holder is very stable: Unlike rotary quick-release bottle holders on the market that have a small base, this product features a larger diameter bottom design, providing greater stability and securely holding cups in place. 360-degree rotation: While most rotating quick-release bottle holders only offer fixed positions at 90 and 180 degrees, this product allows adjustment to any angle, including 15, 30, 45, and other incremental angles. Left and right angles can be freely adjusted for optimal positioning. Easy to install: No screws or tools required. Unlike other bottle cages that require tools for assembly or disassembly, this product can be installed and removed at any time with ease. Simply press a button to adjust the angle. Compatibility: Suitable for use with mountain bikes, bicycles, strollers, wheelchairs, and more. Compatible with most stroller models. The water bottle holder can securely hold milk bottles, water bottles, drinks, juices, and similar containers. Designed to store cups, cans, and bottles of various sizes.