IR touch screen 1,Touch points:1,2,6,10 2,SIze:17''--250'' 3,Can assemble frame or dismounted 4,With glass or without glass ... the glass on which will be more stable while in usage. Question 4 : If we order more , some more pieces can be ... ! The packing outter carton will be accordingly to use. (2,4,6 and 10points) Infrared touch screen frame