These ink cup holders are designed with the artist in mind. A heavier, sturdier method for holding your ink cups so they do not spill. The T-6061 solid aircraft aluminum is heavy enough to double as a paperweight for your drawing model. Holes are milled straight through for easy clean-up and sanitizing. You might even choose to put some barrier film over it and poke holes for only the ink cups you are using if you are looking for even easier clean-up. 
*Cup holder without gun-holder tube fits five #13 ink cups and five #9 ink cups. 
*Cup holder with the Gun-holder option fits four #13 ink cups and five #9 ink cups. (adds $10 to price)
*Unit is 4x3x⅝ inches.
The gun-holder is a tube with a ½ inch diameter hole for ease of replacing gun during use and is 1 ⅝ inch deep to keep needle tips from hitting the bottom. It is removable as part of the ease of clean-up. The rear position of the gun-holder prevents the weight of your gun from tipping the unit. If you would prefer the gun-holder on the right side of the unit please specify.
Engraving is available for free on either option. Be mindful that the font will be smaller as you add more characters. Ink cup holders are available in brushed finish or polished finish. If you are requesting engraving, please state in your order the text you would like engraved and if you would like the text to be script or block. 
As always, contact me anytime with questions or further custom requests.