Not Easy to Fall offEquipped with secure and sturdy epoxy straps and elastic hook and straps, Bike Speaker Mount can hold the bottle firmly all the way and provide a secure and firm hold. PE Board Inside BracketThere is PE board inside the bracket, which has shaping effect, and good toughness, not easy to break. Bicycle Speaker Strap is also cushioning and nonip Durable MaterialSpeaker Holder For Bike is featuring durable, flexible, userfriendly, reliable, strong in structure with the adoption of highend nylon fabric Light and CompactSpeaker Mount Strap is lightweight and portable, quickly attach to any rail of the golf cart rail bike. Speaker Mount Strap is compact without taking up too much space. MultipurposeYou are able to apply Bike Water Bottle Strap for some accessories like beverages, water bottles, golf accessories, tools, speakers, clothes and more