In the box you will find a pair of slots for your holder, you only have to remove your old slots and screw the newest 3DPSlots in your holder, easy and fast.
The 3DPSlots are made in one piece, they have three guides and it's compatible with the adapter to use the 105mm CPL screwed on it, but do you really need this big/expensive/fragile round filter?, the 3DPSLots are designed to work in conjunction with the Badpter and your CPL screwed in your lens, 3DPideas recommend don't spend your money in this kind of filters and use the Badpter ;).