The Letus Matte Box Standard Kit includes a french flag, a double-wide 4x5.6" filter holder, an angled filter spacer, and a mounting bracket for 15mm rod systems. This matte box can accommodate up to four filter stages, including a 138mm round filter. For discerning filmmakers and videographers, a matte box is an essential tool for maximizing light control and provides an efficient means of deploying and adjusting filters. The Standard Kit provides several accessories, but for more options check out the Complete Kit.