Vanguard Alta Stone Bag Medium (SBM)

The Alta SBM Stone Bag attaches to your tripod's three legs and supports a counterweight, which can provide additional stability when you're using a heavy camera/lens combination or you're operating in windy conditions.
The bag is composed of durable polyester and easily attaches to all tripod legs via hook & loop fasteners.

Vanguard Alta SBM Stone Bag Medium 

Vanguard Alta SBM Stone Bag Medium