This is a set of things that goes in an easton adjustable arrow tube. it's set up for my rig so it has space for 6, 7mm arrows and a doinker storm stabilizer. print the bottom part and put it in the bottom of the tube. the arrow-spacer.stl goes in the top part, low enough so that the fletches clear the top, and locks in to the teeth on the adjustable part of the tube. then you drop arrow-spacer-lock.stl in the oversized arrow hole to prevent it from rotating out. finally, arrow-spacer-top sits in the grooves in arrow-spacer and rotates to lock the stabilizer in place.