Extendable Container v2 (End Piece - A)

Version 2 of the extendible container, this version has connected support along the vertical sides of the container as well as two differing (male and female) end pieces so you don't need to have a centre connection piece.

This is End piece A (Male end). You can connect this directly with End piece B to make a 200mm long container or you can add a 100mm centre piece to make a 300mm long container, or you could add multiple centre piece to make the container as long as you want.