投 is a Japanese kanji written with 7 strokes, listed here under the keyword “throw”. It is built from 扌 (finger) and 殳 (weapon). In Remembering the Kanji by James W. Heisig it is frame 762.
On KumiJi Glyph Explorer, open the parts search and type “finger” + “weapon”. 投 is among the results, together with every other character containing the same shapes.
Open 投 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.