We make card struts for A4 and A3 counter cards and C Flute struts for larger pieces. We also make foamboard struts for large works which are attached by Velcro and can be detached.
We make slotted acrylic bases in black and white to stand small counter top displays. They can take pieces up to A2 and can be made for 3mm materials like Forex up to 30mm materials like 30mm acrylic blocks.
We make wooden oval bases with slots to take large free-standing panels up to 2m tall. These are inobtrusive and look classy for that upmarket display.