[【Adjustable to Fit】 The boat cover support poles are designed with an easy-to-use telescoping pole that adjustable from 23" to 51". Keep your boat cover or tarp securely in place and prevent water from pooling. 【Mushroom Cap to Protect】 The boat cover support pole features a mushroom cap system that accommodates various styles of covers. Adjust it to hold your cover in place or use the rounded cap to prevent tearing. "【Made to Last】 Made from strong yet lightweight aluminum and ABS the boat cover support poles are built to last. They wont bend or break making them perfect for your boat covers." 【Accessories for Stabilization】 Each pole will come with 3 straps and a weight bag to help you stabilize it better. Fill the bag with sand rocks etc. and tie it to the base to further help you stabilize the support pole. 【Easy to Use】 With telescoping design and easy locking system the boat cover support pole is more simple and convenient to use. No need to worry about assembly just "lock" and "tighten".]