Specifications :

1. Filter holder specially designed Compatible with Action 4, compatible with 49mm filters.
2. Support multi-filter stacking, increasing creative space and enriching imagination.
3. The product is only the filter holder, not including the filter itself.
4. Durable frame enhances light transmission and protects lens without discomfort
5. Made of aluminum alloy metal, the whole is delicate and smooth, with the characteristics of high strength and high toughness of aluminum alloy material.

Type 1: Compatible with Ace Pro
Type 2: Compatible with Action 4
Material: Aluminum
Origin: Mainland China