Guerrilla Painter Extension Clip 102 Series for Guerrilla Boxes - Silver Metal Paint Brush Holder | Perfect for Outdoor Plein Air Painting & Art Studio Organization

For Do-It-Yourself, or retrofit any of the 102 Series Guerrilla Boxes (5x7 Pocket Box, 6x8 ThumBox,8x10 Cigar Box, 9x12 Laptop Box). Holds two panels (back-to-back) in the larger space and one more in the front. Extends in front of the bottom edge of the open lid.