A complete filter and lens system for GoPro Hero3 & Hero3+ The FLIP3.1 System has the same professional craftsmanship of previous models, and now features the all new TOP FLIP and SHALLOW, DIVE, and DEEP filter options. The FLIP3.1 offers the best color and most rugged design of any filter on the market. If you have a FLIP3.1 frame, you can mix and match 3.1 filters and 55MM adapters to either TOP FLIP or side positions. The TOP FLIP is fully compatible with FLIP3 frames, allowing you to use any FLIP3.1 filter and 55MM adapter in the top position. The original FLIP3 frame requires original FLIP3 filters in the side position. The original FLIP3 filter is the same color as the DIVE filter. New multiple filters for perfect color!