The Thousand Hands Manipulation Force is a technique which is used through the puppet of the Third Kazekage.
From the Third Kazekage puppet's left arm opens several compartments. These compartments are prepared with summoning seals in them, which calls forth a large number of long puppet arms that can bend and follow the opponent, then crush them with devastating force. The arms are modified with launchers, which can emit poison gas, binding wires with a kunai-anchor, or regular kunai. Sasori can detach the entire left arm (with the thousand arms) to regain mobility for the puppet, and a buzzsaw takes its place.