Here is the Eiger Micro clamp EMC-5 28mm by Mineshima, the high quality small clamp for holding two parts together very tight. The 28mm size of this clamp really is perfect for the 1:144 scale gundam model kit parts. I use this to hold joined plastic model kit parts together using cement for hours while waiting and making sure for the bond to completely cure. I bought it from HLJ for 440 Japanese Yen, it is worth the price as the materials used are quite solid. Support tools like this one should always be on your modelling hobby arsenal.