The part is a grenade. For, even ambitious amateur photographers an absolute must. I bought it for my Canon EOS 600D and also used several times. Of course, it is not a full replacement for a tripod, but all traveling the lighter and more manageable version. The thread on the 13 cm large round cushion is mounted centrally. THE POD gives the camera a stability and allows sensational prospects. In cooperation with auto or remote shutter release is wonderful blur long exposure can make. Finally, it is very sturdy, and well processed material produced which can be cleaned very well. An absolute must for the camera bag.