Now your K-6 students can master the computer without having to master a "wrong-sized" keyboard! We've reduced a fully functioning keyboard to enhance your students' ability to learn proper computing and keyboarding skills. The result? LittleFingers® — the first and only keyboard designed especially for kids' hands (source).
While there are USB versions, the original Littlefingers was available with either a built-in trackball (LF-2000) or number pad (LF-2100) and was compatible with PC and Mac via PS/2 and ADB connectors. (A switch on the back selected between PC and Mac modes.)
Apart from the strange arrow cluster, which is plain cruel, the concept is pretty reasonable. A lot of musical instruments with reduced sizes are manufactured for kids so why not make a smaller keyboard?
The Alps mount keycaps are 14.5mm wide so the "littlefinger-spacing" could be about 15mm.
Much smaller than the 19.05mm standard or the 18x17mm (17.5x16.5mm caps) Choc – or better said MBK – spacing.