Manfrotto Mini Aluminum Ball Head

The MHMINIBALL is a small aluminium ball head with a universal female thread underneath, which makes it compatible with any support, and a universal 1/4 in thread on top for a camera of up to 1 kg (2.2 lb). The ball tips far enough to shoot portrait, so a phone or a compact does not have to be wedged sideways.

At 36 grams it is the head that stays in the bag rather than the one left at home, which is most of the argument for it. Aluminum, 0.036 kg (0.08 lb).