Fasmov Zware fotografische zandzak studio video zandzak voor lichtstandaards, boomstandaard, statief, pak van 4

It's for adding balance to a boat.

Perfect for balancing heavy light toppling tripods in photo-shoot!

For the price, these do the job, look professional, and reduce the danger of injury and broken equipment. The double zipper makes them a little hard to fill, but it keeps leaking to a minimum. They can leak a tiny bit though. If I had it do do over, I'd put a ziploc inside each pocket and fill that with sand. I may yet, because I don't want to leave sand on a client's carpet. Filling is a pain because the double zippers make the hole small, but you do that once. Not a real problem. They hold enough sand for one to stabilize a softbox mounted directly on a stand. I haven't tried with a boom, but I suspect I'll want two bags for that job. I'm happy with these and am ordering another set.

Great value! I've filled it with rocks to avoid messy sand. The supporting rod poked out within a month but I use it without now.

Very satisfied with the quality and looks, the pattern with yellow and black stripes is more eye catching so is easier to be aware of the bags and not step on or stumble with tripods as you move around the setup. Bought as additional counterweights for over head tripod and to put some weight on tripods legs. Would buy again.