These come included with any SmallHD director's monitor kit for free. If you would like to rent these by themself for your own monitor, it is $5/day or $15/week.

These Monitor Handles and Neck Strap from SmallHD give you a comfortable way of holding a compatible monitor. Easy to install, the lightweight black rubber handles attach securely to your monitor's side threaded holes using the included screws. The padded neoprene neck strap is adjustable and fastens onto the handles.