Wide Compatibility: The PERLESMITH speaker stands feature an adjustable width of 4.5" to 9", making it compatible with most small bookshelf and satellite speakers up to 11 lbs. These speaker stands are compatible with Bose, Harman Kardon, Polk, JBL, Sony, and more. Please note: it is not suitable for round or irregularly shaped speakers. Customizable Height for Optimal Sound: These floor speaker stands feature an adjustable height range from 33.3" to 45", positioning your speakers at the perfect level for the best acoustics, whether you're enjoying music or movies. The twist-lock design ensures quick and easy height adjustment without the need for tools. Two Cable Management Options: The speaker stands pair feature a 1.18" H x 0.59" W cable hole for routing wires through the hollow poles for a clean look. Please confirm the size before purchase. If the cable holes are too small for connectors or cables to pass through, the floor speaker stands include hook & loop straps to secure cables along the outside of the poles. Enhanced Stability: Made from solid steel with a wide base and 20% deeper threaded hole connections, this surround sound speaker stand delivers a rock-solid foundation to keep your speaker secure and balanced. It also includes non-slip foot pads, ensuring safe and stable placement on any floor type. Effortless Assembly & Reliable Support: Each pair of speaker stands comes with standard mounting hardware for hassle-free setup. Our US-based customer support team is always online to assist with pre-sale and after-sale support. If you have any questions, feel free to contact us, and we’ll respond within 24 hours.