These clips can be used to mount 12mm bullet nodes to spiral trees when converting them to pixels. These work for Home Depot(link below) and Target (link below)trees, may work for others but look at the pictures closely to make sure the frame matches that of your trees.
There is a groove on one side of the clip that slides into the notch on the pixel node(slot that normally snaps into boscoyo strips or coro) and holds it in place tightly to help prevent rocking or spinning of the pixel. As with my emt and pvc clips it also has a notch for the wiring to sit behind the node in the clip for a cleaner look when mounted.
These will be printed in white petg. Typical use calls for 100 pixels on the 6' tree and 50 pixels on the 4' tree in the Home Depot pack, this is subject to personal opinion and use and preferred density of course. Clips will be sold in packs of 50. Due to the nature of the small 'prongs' that hold the clip to the tree you may have a few that break when trying to install (I broke several of the original clips in the same place when trying to remove them from the tree), I recommend not installing them in extreme cold conditions if possible, and do not store the clips in the cold before installing them.