This Maxim Displays product, Wire Stand (A Style) pack of 10 is a great product for displaying many different sizes in the same way with a standard product, the colour options of White,Brass and Nickel give you good display options.

WxDxH (mm) -

30mm - 35 x 50 x 30

50mm - 50 x 70 x 40

70mm - 65 x 100 x 80

95mm - 75 x 110 x 90

150mm - 115 x 175 x 150

210mm - 145 x 245 x 210