The simple solution for refreshment while plein air painting. Convenient. Durable. Versatile. 3.75" x 4" x 3" with 3.5" diameter at top.

Note: if you use this on your 9x12 Guerrilla Box (as shown in image), the top of the clip may not come down to rest on front lip of box but your drink will still stay secure due to the design of the clip.