Lidlife 4 Packs Of Heavy Photography Sandbags, Studio Video Sandbags, Boom High Quality Design: Saddlebag design for easy use, each sandbag has two velcro closure keep saddle bag secure for easier open and close. Durable Material: The sandbag is made of Oxford cloth, which is very strong and durable. And it can be reused and cleaned. Easy To Use?Fill the saddlebag with sand, gravel, snow, rocks, nuts, bolt or any available material near by. Do not need to carry the extra sand when you are out. Widely Used: Each sandbag rated for 25lbs to easy to carry, often use on photo sets, film sets, for live productions, and more. Extra Accessories: One set includes 4 x Sandbag?4 x Hook Up?6 x Spring Clamps, which can be attached to any position you want.