Turn Pool & Beach Time into a Shark Prank This shark fin costume backpack is a funny novelty dress-up accessory made for pool pranks, beach parties, ocean photos, cruise events, resort gatherings, Halloween costumes, and summer party fun. Wear it on your back and instantly create a shark-style surprise look. Backpack-Style Upright Fin The shark fin is designed to stand upright on the back like a playful costume prop. The backpack-style straps help keep the fin visible while walking on the beach, posing by the pool, or swimming freestyle for funny prank scenes. Soft, Lightweight & Easy to Wear Made of soft cloth material, this shark fin is lightweight and comfortable for casual costume use. It is easy to wear, easy to remove, and perfect for party photos, beach videos, poolside jokes, and themed events. Adjustable Straps with Buckles The elastic shoulder straps and included black buckles allow a more secure fit. Wear it like a small backpack and adjust the straps for better positioning during beach walks, pool parties, or group prank activities. Multiple Color & Pack Choices Choose blue, gray, or mixed color options. Available in 3PCS and 6PCS sets for couples, friends, party groups, beach clubs, resort events, and shark-themed costume photos. Product Size Shark fin size: approx. 30 x 20.5 cm / 11.85 x 8.07 in 3PCS set weight: approx. 60 g 6PCS set weight: approx. 125 g Important Notice This product is a novelty costume accessory only. It is not a flotation device, life-saving product, swimming aid, or protective equipment. Use only in safe water areas. 【Pool & Beach Prank Fun】：Create a hilarious shark-style surprise at the pool, beach, ocean, resort, cruise party, or summer gathering. This shark fin costume backpack is designed for funny prank moments, party photos, and