Main Features:
FOTGA DP500IIIS S.light Mini Clamp-on Matte Box is a lightweight, compact and durable matte box for filmmakers using DSLR and mirrorless cameras. Made of high quality material, the Mini Matte Box weighs only 140g (4.9oz). 
The included carbon fiber top french flag helps prevent unwanted light flare and improves the quality of videos. It provides 180 degrees angle adjustment, and you can adjust it to the desired angles by using the damping knob screw on the top.
Multiple 1/4"-20 and 3/8"-16 threaded holes and cold shoe mounts for additional accessories, such as microphone, LED lights or the monitor bracket mounting.
This Mini Matte Box supports multiple filter options, including rectangular, square and circular filters. The front of the matte box provides a slot for any standard 4x4"/4x5.65"/100mmx100mm lens filter up to 4mm in thickness. Also, the circular filters, such as UV, ND, CPL etc, can be attached between to your lens and back of the matte box with the included adapter threading rings. The kit includes four lens adapter rings (67mm/72mm/77mm/82mm), additional adapter rings (52mm/55mm/58mm/62mm) are available for purchasing separately.
Specification:
Item Dimensions: 15x11x4cm
Product Dimensions: 21.5x15.5x8cm 
Item Net Weight: 4.9oz/140g
Package Weight: 470g(Starter Version)

Starter Version Package Including:
1x Mini Clamp-on Matte Box
1x Carbon fiber top french flag
1x Double-threaded adapter ring set(67mm/72mm/77mm/82mm)
4x piece for installing lens filter
1x Allen key