A sand bag is a must have equipment item for in and out of the studio. Any top heavy stand can put your expensive microphone or light at risk. These 15 pound sand bags can be wrapped around any leg of your stand with its two winged design. Working outside? Have no fear with it's water resistant outer shell that will hold down your equipment in rough conditions! It's hand strap allows you to easily lift and move the bag to where you need it most!
B&H Link: http://www.bhphotovideo.com/c/product/416775-REG/Impact_SB_15B_Saddle_Sandbag_15.html