Heavy-Duty Support: This backdrop stand features a carbon steel base. The flat base provides better stability, avoiding wobbling and supporting backdrops like seamless paper, fabric, and canvas-ideal for photography studios. Adjustable Size: Our adjustable backdrop stand supports backdrops up to 8.5 x 10 ft / 260 x 300 cm. The height of support poles can extend from 4.8 ft / 145 cm to 8.5 ft / 260 cm, and the width can extend from 5 ft / 139 cm to 10 ft / 306 cm to fit different backdrop sizes. Note: This product does not include balloons, decorative items, or backdrop fabric. Easy Setup & Carry: This backdrop holder has spring-loaded pins at each crossbar joint for quick assembly and disassembly, with no tools required. The carrying bag makes it easy to store and transport to set up the ideal backdrop anywhere. Multi-Purpose Use: Our background stand is ideal for studio photography, weddings, parties, product displays, and more, meeting all your background needs. Complete Accessory Set: This photo backdrop frame includes heavy-duty clips to hold backdrops flat and wrinkle-free and sandbags to add weight and stability, especially for outdoor setups.