This oval Large Viewfinder Eyecushion is made of ultrasuede microfiber. It provides a high level of softness and a superior moisture absorption rate.It can be used in any climate,give you a comfortable shooting experience.Size：4 x 3.4"/100*86mm Outside Dimensions,1.9" / 49 mm Inside Diameter.It can fit over many common external and built-in viewfinders. These include the viewfinders of the Arri Alexa、Mini、Amira 、Sony VENICE, PDW-F800, FS-100, FS-700, F55, F5, EX3, and EX1, JVC GY-100U, Panasonic VariCam 27F, VariCam 4K, and many similar oval eyecups.High quality and low price are your best choice！