Fasmov Heavy Duty Photographic Sandbag Studio Video Sand Bag for Light Stands, Boom Stand, Tripod,Pack of 4

Llegaron bien, tienen buen tamaño parecen resistentes pero vienen con doble zipper y el interior se safó al querer abrir lo más posible para introducir una bolsita desechable con la arena... el segundo cierre funciona bien pero probablemente con el uso y el peso no resista muchos años. Buena opción por el precio.

It's for adding balance to a boat.

Seem to be very well made. I was impressed by the quality of the feel and sturdiness of the construction. Price was good considering the product received

I bought these to weigh down my vloging equipment. Specifically tripods. Firstly, let’s address some of the issues pointed out in other reviews. The zips. Although not the sturdiest, and in the case of the inner ones, quite a fiddly shape, they are perfectly fit for purpose. In an ideal world you only need to use them once, while filling the bags, so with care and patience they work just fine. Leaks. Nobody in their right mind fills a weight bag with sand without using a ziplock bag to contain said sand. Its just madness. Fill a ziplock bag with sand (I use the big ones from IKEA) and then stuff it into the weight bag and carefully zip it up. Perfect. Poor quality fabric? These weight bags are primarily sold as “equipment weights”. Camera equipment. Electronic equipment used outside for a day. That sort of thing. They are not UV stable, so you can’t expect to level them outside all year round and not have the fabric degrade. They are fine for their intended purpose. So, to summarize. A great, versatile set of budget weight bags, that are easy to fill and do exactly what they should do, for a bargain price. Whats not to love?

Works great and well made - ordered another set!